20121089168

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{81233}}^1$

素因数の和:81491

約数の個数: 40

約数和(自身を含む): 39617171928

約数和(自身を除く): 19496082760

約数列:

[1, 2, 4, 8, 16, 113, 137, 226, 274, 452, 548, 904, 1096, 1808, 2192, 15481, 30962, 61924, 81233, 123848, 162466, 247696, 324932, 649864, 1299728, 9179329, 11128921, 18358658, 22257842, 36717316, 44515684, 73434632, 89031368, 146869264, 178062736, 1257568073, 2515136146, 5030272292, 10060544584, 20121089168]

約数ペア:

[(1, 20121089168), (2, 10060544584), (4, 5030272292), (8, 2515136146), (16, 1257568073), (113, 178062736), (137, 146869264), (226, 89031368), (274, 73434632), (452, 44515684), (548, 36717316), (904, 22257842), (1096, 18358658), (1808, 11128921), (2192, 9179329), (15481, 1299728), (30962, 649864), (61924, 324932), (81233, 247696), (123848, 162466)]