85814860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{271}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 184246272

約数和(自身を除く): 98431412

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 223, 271, 284, 355, 446, 542, 710, 892, 1084, 1115, 1355, 1420, 2230, 2710, 4460, 5420, 15833, 19241, 31666, 38482, 60433, 63332, 76964, 79165, 96205, 120866, 158330, 192410, 241732, 302165, 316660, 384820, 604330, 1208660, 4290743, 8581486, 17162972, 21453715, 42907430, 85814860]

約数ペア:

[(1, 85814860), (2, 42907430), (4, 21453715), (5, 17162972), (10, 8581486), (20, 4290743), (71, 1208660), (142, 604330), (223, 384820), (271, 316660), (284, 302165), (355, 241732), (446, 192410), (542, 158330), (710, 120866), (892, 96205), (1084, 79165), (1115, 76964), (1355, 63332), (1420, 60433), (2230, 38482), (2710, 31666), (4460, 19241), (5420, 15833)]