18201960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:288

約数の個数: 192

約数和(自身を含む): 70087680

約数和(自身を除く): 51885720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 233, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 466, 504, 558, 620, 630, 651, 699, 744, 840, 868, 930, 932, 1085, 1116, 1165, 1240, 1260, 1302, 1395, 1398, 1631, 1736, 1860, 1864, 1953, 2097, 2170, 2232, 2330, 2520, 2604, 2790, 2796, 3255, 3262, 3495, 3720, 3906, 4194, 4340, 4660, 4893, 5208, 5580, 5592, 6510, 6524, 6990, 7223, 7812, 8155, 8388, 8680, 9320, 9765, 9786, 10485, 11160, 13020, 13048, 13980, 14446, 14679, 15624, 16310, 16776, 19530, 19572, 20970, 21669, 24465, 26040, 27960, 28892, 29358, 32620, 36115, 39060, 39144, 41940, 43338, 48930, 50561, 57784, 58716, 65007, 65240, 72230, 73395, 78120, 83880, 86676, 97860, 101122, 108345, 117432, 130014, 144460, 146790, 151683, 173352, 195720, 202244, 216690, 252805, 260028, 288920, 293580, 303366, 325035, 404488, 433380, 455049, 505610, 520056, 587160, 606732, 650070, 758415, 866760, 910098, 1011220, 1213464, 1300140, 1516830, 1820196, 2022440, 2275245, 2600280, 3033660, 3640392, 4550490, 6067320, 9100980, 18201960]

約数ペア:

[(1, 18201960), (2, 9100980), (3, 6067320), (4, 4550490), (5, 3640392), (6, 3033660), (7, 2600280), (8, 2275245), (9, 2022440), (10, 1820196), (12, 1516830), (14, 1300140), (15, 1213464), (18, 1011220), (20, 910098), (21, 866760), (24, 758415), (28, 650070), (30, 606732), (31, 587160), (35, 520056), (36, 505610), (40, 455049), (42, 433380), (45, 404488), (56, 325035), (60, 303366), (62, 293580), (63, 288920), (70, 260028), (72, 252805), (84, 216690), (90, 202244), (93, 195720), (105, 173352), (120, 151683), (124, 146790), (126, 144460), (140, 130014), (155, 117432), (168, 108345), (180, 101122), (186, 97860), (210, 86676), (217, 83880), (233, 78120), (248, 73395), (252, 72230), (279, 65240), (280, 65007), (310, 58716), (315, 57784), (360, 50561), (372, 48930), (420, 43338), (434, 41940), (465, 39144), (466, 39060), (504, 36115), (558, 32620), (620, 29358), (630, 28892), (651, 27960), (699, 26040), (744, 24465), (840, 21669), (868, 20970), (930, 19572), (932, 19530), (1085, 16776), (1116, 16310), (1165, 15624), (1240, 14679), (1260, 14446), (1302, 13980), (1395, 13048), (1398, 13020), (1631, 11160), (1736, 10485), (1860, 9786), (1864, 9765), (1953, 9320), (2097, 8680), (2170, 8388), (2232, 8155), (2330, 7812), (2520, 7223), (2604, 6990), (2790, 6524), (2796, 6510), (3255, 5592), (3262, 5580), (3495, 5208), (3720, 4893), (3906, 4660), (4194, 4340)]