65763980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{20173}}^1$

素因数の和:20345

約数の個数: 24

約数和(自身を含む): 138958512

約数和(自身を除く): 73194532

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 20173, 40346, 80692, 100865, 201730, 403460, 3288199, 6576398, 13152796, 16440995, 32881990, 65763980]

約数ペア:

[(1, 65763980), (2, 32881990), (4, 16440995), (5, 13152796), (10, 6576398), (20, 3288199), (163, 403460), (326, 201730), (652, 100865), (815, 80692), (1630, 40346), (3260, 20173)]