28164860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 60867072

約数和(自身を除く): 32702212

約数列:

[1, 2, 4, 5, 10, 20, 73, 101, 146, 191, 202, 292, 365, 382, 404, 505, 730, 764, 955, 1010, 1460, 1910, 2020, 3820, 7373, 13943, 14746, 19291, 27886, 29492, 36865, 38582, 55772, 69715, 73730, 77164, 96455, 139430, 147460, 192910, 278860, 385820, 1408243, 2816486, 5632972, 7041215, 14082430, 28164860]

約数ペア:

[(1, 28164860), (2, 14082430), (4, 7041215), (5, 5632972), (10, 2816486), (20, 1408243), (73, 385820), (101, 278860), (146, 192910), (191, 147460), (202, 139430), (292, 96455), (365, 77164), (382, 73730), (404, 69715), (505, 55772), (730, 38582), (764, 36865), (955, 29492), (1010, 27886), (1460, 19291), (1910, 14746), (2020, 13943), (3820, 7373)]