20199783268

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1\times {\mathrm{16871}}^1$

素因数の和:17644

約数の個数: 48

約数和(自身を含む): 41122867968

約数和(自身を除く): 20923084700

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 701, 854, 1402, 1708, 2804, 4907, 9814, 16871, 19628, 33742, 42761, 67484, 85522, 118097, 171044, 236194, 299327, 472388, 598654, 1029131, 1197308, 2058262, 4116524, 7203917, 11826571, 14407834, 23653142, 28815668, 47306284, 82785997, 165571994, 331143988, 721420831, 1442841662, 2885683324, 5049945817, 10099891634, 20199783268]

約数ペア:

[(1, 20199783268), (2, 10099891634), (4, 5049945817), (7, 2885683324), (14, 1442841662), (28, 721420831), (61, 331143988), (122, 165571994), (244, 82785997), (427, 47306284), (701, 28815668), (854, 23653142), (1402, 14407834), (1708, 11826571), (2804, 7203917), (4907, 4116524), (9814, 2058262), (16871, 1197308), (19628, 1029131), (33742, 598654), (42761, 472388), (67484, 299327), (85522, 236194), (118097, 171044)]