2158504880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:516

約数の個数: 240

約数和(自身を含む): 6245002080

約数和(自身を除く): 4086497200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 73, 76, 80, 95, 98, 112, 133, 140, 146, 152, 190, 196, 245, 266, 280, 292, 304, 365, 380, 392, 397, 490, 511, 532, 560, 584, 665, 730, 760, 784, 794, 931, 980, 1022, 1064, 1168, 1330, 1387, 1460, 1520, 1588, 1862, 1960, 1985, 2044, 2128, 2555, 2660, 2774, 2779, 2920, 3176, 3577, 3724, 3920, 3970, 4088, 4655, 5110, 5320, 5548, 5558, 5840, 6352, 6935, 7154, 7448, 7543, 7940, 8176, 9310, 9709, 10220, 10640, 11096, 11116, 13870, 13895, 14308, 14896, 15086, 15880, 17885, 18620, 19418, 19453, 20440, 22192, 22232, 27740, 27790, 28616, 28981, 30172, 31760, 35770, 37240, 37715, 38836, 38906, 40880, 44464, 48545, 52801, 55480, 55580, 57232, 57962, 60344, 67963, 71540, 74480, 75430, 77672, 77812, 97090, 97265, 105602, 110960, 111160, 115924, 120688, 135926, 143080, 144905, 150860, 155344, 155624, 194180, 194530, 202867, 211204, 222320, 231848, 264005, 271852, 286160, 289810, 301720, 311248, 339815, 369607, 388360, 389060, 405734, 422408, 463696, 528010, 543704, 550639, 579620, 603440, 679630, 739214, 776720, 778120, 811468, 844816, 1014335, 1056020, 1087408, 1101278, 1159240, 1359260, 1420069, 1478428, 1556240, 1622936, 1848035, 2028670, 2112040, 2202556, 2318480, 2718520, 2753195, 2840138, 2956856, 3245872, 3696070, 3854473, 4057340, 4224080, 4405112, 5437040, 5506390, 5680276, 5913712, 7100345, 7392140, 7708946, 8114680, 8810224, 11012780, 11360552, 14200690, 14784280, 15417892, 16229360, 19272365, 22025560, 22721104, 26981311, 28401380, 29568560, 30835784, 38544730, 44051120, 53962622, 56802760, 61671568, 77089460, 107925244, 113605520, 134906555, 154178920, 215850488, 269813110, 308357840, 431700976, 539626220, 1079252440, 2158504880]

約数ペア:

[(1, 2158504880), (2, 1079252440), (4, 539626220), (5, 431700976), (7, 308357840), (8, 269813110), (10, 215850488), (14, 154178920), (16, 134906555), (19, 113605520), (20, 107925244), (28, 77089460), (35, 61671568), (38, 56802760), (40, 53962622), (49, 44051120), (56, 38544730), (70, 30835784), (73, 29568560), (76, 28401380), (80, 26981311), (95, 22721104), (98, 22025560), (112, 19272365), (133, 16229360), (140, 15417892), (146, 14784280), (152, 14200690), (190, 11360552), (196, 11012780), (245, 8810224), (266, 8114680), (280, 7708946), (292, 7392140), (304, 7100345), (365, 5913712), (380, 5680276), (392, 5506390), (397, 5437040), (490, 4405112), (511, 4224080), (532, 4057340), (560, 3854473), (584, 3696070), (665, 3245872), (730, 2956856), (760, 2840138), (784, 2753195), (794, 2718520), (931, 2318480), (980, 2202556), (1022, 2112040), (1064, 2028670), (1168, 1848035), (1330, 1622936), (1387, 1556240), (1460, 1478428), (1520, 1420069), (1588, 1359260), (1862, 1159240), (1960, 1101278), (1985, 1087408), (2044, 1056020), (2128, 1014335), (2555, 844816), (2660, 811468), (2774, 778120), (2779, 776720), (2920, 739214), (3176, 679630), (3577, 603440), (3724, 579620), (3920, 550639), (3970, 543704), (4088, 528010), (4655, 463696), (5110, 422408), (5320, 405734), (5548, 389060), (5558, 388360), (5840, 369607), (6352, 339815), (6935, 311248), (7154, 301720), (7448, 289810), (7543, 286160), (7940, 271852), (8176, 264005), (9310, 231848), (9709, 222320), (10220, 211204), (10640, 202867), (11096, 194530), (11116, 194180), (13870, 155624), (13895, 155344), (14308, 150860), (14896, 144905), (15086, 143080), (15880, 135926), (17885, 120688), (18620, 115924), (19418, 111160), (19453, 110960), (20440, 105602), (22192, 97265), (22232, 97090), (27740, 77812), (27790, 77672), (28616, 75430), (28981, 74480), (30172, 71540), (31760, 67963), (35770, 60344), (37240, 57962), (37715, 57232), (38836, 55580), (38906, 55480), (40880, 52801), (44464, 48545)]