20405316

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2944

約数の個数: 48

約数和(自身を含む): 51752960

約数和(自身を除く): 31347644

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 38, 57, 62, 76, 93, 114, 124, 186, 228, 372, 589, 1178, 1767, 2356, 2887, 3534, 5774, 7068, 8661, 11548, 17322, 34644, 54853, 89497, 109706, 164559, 178994, 219412, 268491, 329118, 357988, 536982, 658236, 1073964, 1700443, 3400886, 5101329, 6801772, 10202658, 20405316]

約数ペア:

[(1, 20405316), (2, 10202658), (3, 6801772), (4, 5101329), (6, 3400886), (12, 1700443), (19, 1073964), (31, 658236), (38, 536982), (57, 357988), (62, 329118), (76, 268491), (93, 219412), (114, 178994), (124, 164559), (186, 109706), (228, 89497), (372, 54853), (589, 34644), (1178, 17322), (1767, 11548), (2356, 8661), (2887, 7068), (3534, 5774)]