20199608912

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2179}}^1\times {\mathrm{2237}}^1$

素因数の和:4468

約数の個数: 80

約数和(自身を含む): 45978188160

約数和(自身を除く): 25778579248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 2179, 2237, 4144, 4358, 4474, 8716, 8948, 15253, 15659, 17432, 17896, 30506, 31318, 34864, 35792, 61012, 62636, 80623, 82769, 122024, 125272, 161246, 165538, 244048, 250544, 322492, 331076, 564361, 579383, 644984, 662152, 1128722, 1158766, 1289968, 1324304, 2257444, 2317532, 4514888, 4635064, 4874423, 9029776, 9270128, 9748846, 19497692, 34120961, 38995384, 68241922, 77990768, 136483844, 180353651, 272967688, 360707302, 545935376, 721414604, 1262475557, 1442829208, 2524951114, 2885658416, 5049902228, 10099804456, 20199608912]

約数ペア:

[(1, 20199608912), (2, 10099804456), (4, 5049902228), (7, 2885658416), (8, 2524951114), (14, 1442829208), (16, 1262475557), (28, 721414604), (37, 545935376), (56, 360707302), (74, 272967688), (112, 180353651), (148, 136483844), (259, 77990768), (296, 68241922), (518, 38995384), (592, 34120961), (1036, 19497692), (2072, 9748846), (2179, 9270128), (2237, 9029776), (4144, 4874423), (4358, 4635064), (4474, 4514888), (8716, 2317532), (8948, 2257444), (15253, 1324304), (15659, 1289968), (17432, 1158766), (17896, 1128722), (30506, 662152), (31318, 644984), (34864, 579383), (35792, 564361), (61012, 331076), (62636, 322492), (80623, 250544), (82769, 244048), (122024, 165538), (125272, 161246)]