781282580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{42323}}^1$

素因数の和:42416

約数の個数: 48

約数和(自身を含む): 1791828864

約数和(自身を除く): 1010546284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 42323, 84646, 169292, 211615, 423230, 550199, 846460, 1100398, 2200796, 2750995, 3004933, 5501990, 6009866, 11003980, 12019732, 15024665, 30049330, 39064129, 60098660, 78128258, 156256516, 195320645, 390641290, 781282580]

約数ペア:

[(1, 781282580), (2, 390641290), (4, 195320645), (5, 156256516), (10, 78128258), (13, 60098660), (20, 39064129), (26, 30049330), (52, 15024665), (65, 12019732), (71, 11003980), (130, 6009866), (142, 5501990), (260, 3004933), (284, 2750995), (355, 2200796), (710, 1100398), (923, 846460), (1420, 550199), (1846, 423230), (3692, 211615), (4615, 169292), (9230, 84646), (18460, 42323)]