28798510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 60201792

約数和(自身を除く): 31403282

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 83, 85, 130, 157, 166, 170, 221, 314, 415, 442, 785, 830, 1079, 1105, 1411, 1570, 2041, 2158, 2210, 2669, 2822, 4082, 5338, 5395, 7055, 10205, 10790, 13031, 13345, 14110, 18343, 20410, 26062, 26690, 34697, 36686, 65155, 69394, 91715, 130310, 169403, 173485, 183430, 221527, 338806, 346970, 443054, 847015, 1107635, 1694030, 2215270, 2879851, 5759702, 14399255, 28798510]

約数ペア:

[(1, 28798510), (2, 14399255), (5, 5759702), (10, 2879851), (13, 2215270), (17, 1694030), (26, 1107635), (34, 847015), (65, 443054), (83, 346970), (85, 338806), (130, 221527), (157, 183430), (166, 173485), (170, 169403), (221, 130310), (314, 91715), (415, 69394), (442, 65155), (785, 36686), (830, 34697), (1079, 26690), (1105, 26062), (1411, 20410), (1570, 18343), (2041, 14110), (2158, 13345), (2210, 13031), (2669, 10790), (2822, 10205), (4082, 7055), (5338, 5395)]