20217485040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1\times {\mathrm{4447}}^1$

素因数の和:5479

約数の個数: 160

約数和(自身を含む): 66053867520

約数和(自身を除く): 45836382480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 997, 1140, 1520, 1994, 2280, 2991, 3988, 4447, 4560, 4985, 5982, 7976, 8894, 9970, 11964, 13341, 14955, 15952, 17788, 18943, 19940, 22235, 23928, 26682, 29910, 35576, 37886, 39880, 44470, 47856, 53364, 56829, 59820, 66705, 71152, 75772, 79760, 84493, 88940, 94715, 106728, 113658, 119640, 133410, 151544, 168986, 177880, 189430, 213456, 227316, 239280, 253479, 266820, 284145, 303088, 337972, 355760, 378860, 422465, 454632, 506958, 533640, 568290, 675944, 757720, 844930, 909264, 1013916, 1067280, 1136580, 1267395, 1351888, 1515440, 1689860, 2027832, 2273160, 2534790, 3379720, 4055664, 4433659, 4546320, 5069580, 6759440, 8867318, 10139160, 13300977, 17734636, 20278320, 22168295, 26601954, 35469272, 44336590, 53203908, 66504885, 70938544, 84239521, 88673180, 106407816, 133009770, 168479042, 177346360, 212815632, 252718563, 266019540, 336958084, 354692720, 421197605, 505437126, 532039080, 673916168, 842395210, 1010874252, 1064078160, 1263592815, 1347832336, 1684790420, 2021748504, 2527185630, 3369580840, 4043497008, 5054371260, 6739161680, 10108742520, 20217485040]

約数ペア:

[(1, 20217485040), (2, 10108742520), (3, 6739161680), (4, 5054371260), (5, 4043497008), (6, 3369580840), (8, 2527185630), (10, 2021748504), (12, 1684790420), (15, 1347832336), (16, 1263592815), (19, 1064078160), (20, 1010874252), (24, 842395210), (30, 673916168), (38, 532039080), (40, 505437126), (48, 421197605), (57, 354692720), (60, 336958084), (76, 266019540), (80, 252718563), (95, 212815632), (114, 177346360), (120, 168479042), (152, 133009770), (190, 106407816), (228, 88673180), (240, 84239521), (285, 70938544), (304, 66504885), (380, 53203908), (456, 44336590), (570, 35469272), (760, 26601954), (912, 22168295), (997, 20278320), (1140, 17734636), (1520, 13300977), (1994, 10139160), (2280, 8867318), (2991, 6759440), (3988, 5069580), (4447, 4546320), (4560, 4433659), (4985, 4055664), (5982, 3379720), (7976, 2534790), (8894, 2273160), (9970, 2027832), (11964, 1689860), (13341, 1515440), (14955, 1351888), (15952, 1267395), (17788, 1136580), (18943, 1067280), (19940, 1013916), (22235, 909264), (23928, 844930), (26682, 757720), (29910, 675944), (35576, 568290), (37886, 533640), (39880, 506958), (44470, 454632), (47856, 422465), (53364, 378860), (56829, 355760), (59820, 337972), (66705, 303088), (71152, 284145), (75772, 266820), (79760, 253479), (84493, 239280), (88940, 227316), (94715, 213456), (106728, 189430), (113658, 177880), (119640, 168986), (133410, 151544)]