279778850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{823}}^1$

素因数の和:1371

約数の個数: 48

約数和(自身を含む): 562172352

約数和(自身を除く): 282393502

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 523, 650, 823, 1046, 1646, 2615, 4115, 5230, 6799, 8230, 10699, 13075, 13598, 20575, 21398, 26150, 33995, 41150, 53495, 67990, 106990, 169975, 267475, 339950, 430429, 534950, 860858, 2152145, 4304290, 5595577, 10760725, 11191154, 21521450, 27977885, 55955770, 139889425, 279778850]

約数ペア:

[(1, 279778850), (2, 139889425), (5, 55955770), (10, 27977885), (13, 21521450), (25, 11191154), (26, 10760725), (50, 5595577), (65, 4304290), (130, 2152145), (325, 860858), (523, 534950), (650, 430429), (823, 339950), (1046, 267475), (1646, 169975), (2615, 106990), (4115, 67990), (5230, 53495), (6799, 41150), (8230, 33995), (10699, 26150), (13075, 21398), (13598, 20575)]