671857420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83357}}^1$

素因数の和:83410

約数の個数: 48

約数和(自身を含む): 1568464128

約数和(自身を除く): 896606708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 83357, 166714, 333428, 416785, 833570, 1083641, 1667140, 2167282, 2584067, 4334564, 5168134, 5418205, 10336268, 10836410, 12920335, 21672820, 25840670, 33592871, 51681340, 67185742, 134371484, 167964355, 335928710, 671857420]

約数ペア:

[(1, 671857420), (2, 335928710), (4, 167964355), (5, 134371484), (10, 67185742), (13, 51681340), (20, 33592871), (26, 25840670), (31, 21672820), (52, 12920335), (62, 10836410), (65, 10336268), (124, 5418205), (130, 5168134), (155, 4334564), (260, 2584067), (310, 2167282), (403, 1667140), (620, 1083641), (806, 833570), (1612, 416785), (2015, 333428), (4030, 166714), (8060, 83357)]