39953420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4957}}^1$

素因数の和:5010

約数の個数: 48

約数和(自身を含む): 93289728

約数和(自身を除く): 53336308

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, 4957, 8060, 9914, 19828, 24785, 49570, 64441, 99140, 128882, 153667, 257764, 307334, 322205, 614668, 644410, 768335, 1288820, 1536670, 1997671, 3073340, 3995342, 7990684, 9988355, 19976710, 39953420]

約数ペア:

[(1, 39953420), (2, 19976710), (4, 9988355), (5, 7990684), (10, 3995342), (13, 3073340), (20, 1997671), (26, 1536670), (31, 1288820), (52, 768335), (62, 644410), (65, 614668), (124, 322205), (130, 307334), (155, 257764), (260, 153667), (310, 128882), (403, 99140), (620, 64441), (806, 49570), (1612, 24785), (2015, 19828), (4030, 9914), (4957, 8060)]