78946280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 212889600

約数和(自身を除く): 133943320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 79, 83, 86, 140, 158, 166, 172, 215, 280, 301, 316, 332, 344, 395, 415, 430, 553, 581, 602, 632, 664, 790, 830, 860, 1106, 1162, 1204, 1505, 1580, 1660, 1720, 2212, 2324, 2408, 2765, 2905, 3010, 3160, 3320, 3397, 3569, 4424, 4648, 5530, 5810, 6020, 6557, 6794, 7138, 11060, 11620, 12040, 13114, 13588, 14276, 16985, 17845, 22120, 23240, 23779, 24983, 26228, 27176, 28552, 32785, 33970, 35690, 45899, 47558, 49966, 52456, 65570, 67940, 71380, 91798, 95116, 99932, 118895, 124915, 131140, 135880, 142760, 183596, 190232, 199864, 229495, 237790, 249830, 262280, 281951, 367192, 458990, 475580, 499660, 563902, 917980, 951160, 999320, 1127804, 1409755, 1835960, 1973657, 2255608, 2819510, 3947314, 5639020, 7894628, 9868285, 11278040, 15789256, 19736570, 39473140, 78946280]

約数ペア:

[(1, 78946280), (2, 39473140), (4, 19736570), (5, 15789256), (7, 11278040), (8, 9868285), (10, 7894628), (14, 5639020), (20, 3947314), (28, 2819510), (35, 2255608), (40, 1973657), (43, 1835960), (56, 1409755), (70, 1127804), (79, 999320), (83, 951160), (86, 917980), (140, 563902), (158, 499660), (166, 475580), (172, 458990), (215, 367192), (280, 281951), (301, 262280), (316, 249830), (332, 237790), (344, 229495), (395, 199864), (415, 190232), (430, 183596), (553, 142760), (581, 135880), (602, 131140), (632, 124915), (664, 118895), (790, 99932), (830, 95116), (860, 91798), (1106, 71380), (1162, 67940), (1204, 65570), (1505, 52456), (1580, 49966), (1660, 47558), (1720, 45899), (2212, 35690), (2324, 33970), (2408, 32785), (2765, 28552), (2905, 27176), (3010, 26228), (3160, 24983), (3320, 23779), (3397, 23240), (3569, 22120), (4424, 17845), (4648, 16985), (5530, 14276), (5810, 13588), (6020, 13114), (6557, 12040), (6794, 11620), (7138, 11060)]