90291747

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 156893184

約数和(自身を除く): 66601437

約数列:

[1, 3, 7, 13, 21, 31, 39, 47, 91, 93, 141, 217, 227, 273, 329, 403, 611, 651, 681, 987, 1209, 1457, 1589, 1833, 2821, 2951, 4277, 4371, 4767, 7037, 8463, 8853, 10199, 10669, 12831, 18941, 20657, 21111, 30597, 32007, 49259, 56823, 61971, 74683, 91481, 132587, 138697, 147777, 224049, 274443, 330739, 397761, 416091, 640367, 970879, 992217, 1921101, 2315173, 2912637, 4299607, 6945519, 12898821, 30097249, 90291747]

約数ペア:

[(1, 90291747), (3, 30097249), (7, 12898821), (13, 6945519), (21, 4299607), (31, 2912637), (39, 2315173), (47, 1921101), (91, 992217), (93, 970879), (141, 640367), (217, 416091), (227, 397761), (273, 330739), (329, 274443), (403, 224049), (611, 147777), (651, 138697), (681, 132587), (987, 91481), (1209, 74683), (1457, 61971), (1589, 56823), (1833, 49259), (2821, 32007), (2951, 30597), (4277, 21111), (4371, 20657), (4767, 18941), (7037, 12831), (8463, 10669), (8853, 10199)]