20559318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 46872000

約数和(自身を除く): 26312682

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 61, 78, 87, 122, 149, 174, 183, 298, 366, 377, 447, 754, 793, 894, 1131, 1586, 1769, 1937, 2262, 2379, 3538, 3874, 4321, 4758, 5307, 5811, 8642, 9089, 10614, 11622, 12963, 18178, 22997, 25926, 27267, 45994, 54534, 56173, 68991, 112346, 118157, 137982, 168519, 236314, 263581, 337038, 354471, 527162, 708942, 790743, 1581486, 3426553, 6853106, 10279659, 20559318]

約数ペア:

[(1, 20559318), (2, 10279659), (3, 6853106), (6, 3426553), (13, 1581486), (26, 790743), (29, 708942), (39, 527162), (58, 354471), (61, 337038), (78, 263581), (87, 236314), (122, 168519), (149, 137982), (174, 118157), (183, 112346), (298, 68991), (366, 56173), (377, 54534), (447, 45994), (754, 27267), (793, 25926), (894, 22997), (1131, 18178), (1586, 12963), (1769, 11622), (1937, 10614), (2262, 9089), (2379, 8642), (3538, 5811), (3874, 5307), (4321, 4758)]