105440680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 243233280

約数和(自身を除く): 137792600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 137, 142, 271, 274, 284, 355, 542, 548, 568, 685, 710, 1084, 1096, 1355, 1370, 1420, 2168, 2710, 2740, 2840, 5420, 5480, 9727, 10840, 19241, 19454, 37127, 38482, 38908, 48635, 74254, 76964, 77816, 96205, 97270, 148508, 153928, 185635, 192410, 194540, 297016, 371270, 384820, 389080, 742540, 769640, 1485080, 2636017, 5272034, 10544068, 13180085, 21088136, 26360170, 52720340, 105440680]

約数ペア:

[(1, 105440680), (2, 52720340), (4, 26360170), (5, 21088136), (8, 13180085), (10, 10544068), (20, 5272034), (40, 2636017), (71, 1485080), (137, 769640), (142, 742540), (271, 389080), (274, 384820), (284, 371270), (355, 297016), (542, 194540), (548, 192410), (568, 185635), (685, 153928), (710, 148508), (1084, 97270), (1096, 96205), (1355, 77816), (1370, 76964), (1420, 74254), (2168, 48635), (2710, 38908), (2740, 38482), (2840, 37127), (5420, 19454), (5480, 19241), (9727, 10840)]