20178690872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{1091}}^1$

素因数の和:1293

約数の個数: 128

約数和(自身を含む): 42796615680

約数和(自身を除く): 22617924808

約数列:

[1, 2, 4, 8, 17, 31, 34, 41, 62, 68, 82, 107, 124, 136, 164, 214, 248, 328, 428, 527, 697, 856, 1054, 1091, 1271, 1394, 1819, 2108, 2182, 2542, 2788, 3317, 3638, 4216, 4364, 4387, 5084, 5576, 6634, 7276, 8728, 8774, 10168, 13268, 14552, 17548, 18547, 21607, 26536, 33821, 35096, 37094, 43214, 44731, 56389, 67642, 74188, 74579, 86428, 89462, 112778, 116737, 135284, 135997, 148376, 149158, 172856, 178924, 225556, 233474, 270568, 271994, 298316, 357848, 451112, 466948, 543988, 574957, 596632, 760427, 933896, 1087976, 1149914, 1386661, 1520854, 1984529, 2299828, 2311949, 2773322, 3041708, 3618847, 3969058, 4599656, 4623898, 4786217, 5546644, 6083416, 7237694, 7938116, 9247796, 9572434, 11093288, 14475388, 15876232, 18495592, 19144868, 23573237, 28950776, 38289736, 47146474, 61520399, 81365689, 94292948, 123040798, 148372727, 162731378, 188585896, 246081596, 296745454, 325462756, 492163192, 593490908, 650925512, 1186981816, 2522336359, 5044672718, 10089345436, 20178690872]

約数ペア:

[(1, 20178690872), (2, 10089345436), (4, 5044672718), (8, 2522336359), (17, 1186981816), (31, 650925512), (34, 593490908), (41, 492163192), (62, 325462756), (68, 296745454), (82, 246081596), (107, 188585896), (124, 162731378), (136, 148372727), (164, 123040798), (214, 94292948), (248, 81365689), (328, 61520399), (428, 47146474), (527, 38289736), (697, 28950776), (856, 23573237), (1054, 19144868), (1091, 18495592), (1271, 15876232), (1394, 14475388), (1819, 11093288), (2108, 9572434), (2182, 9247796), (2542, 7938116), (2788, 7237694), (3317, 6083416), (3638, 5546644), (4216, 4786217), (4364, 4623898), (4387, 4599656), (5084, 3969058), (5576, 3618847), (6634, 3041708), (7276, 2773322), (8728, 2311949), (8774, 2299828), (10168, 1984529), (13268, 1520854), (14552, 1386661), (17548, 1149914), (18547, 1087976), (21607, 933896), (26536, 760427), (33821, 596632), (35096, 574957), (37094, 543988), (43214, 466948), (44731, 451112), (56389, 357848), (67642, 298316), (74188, 271994), (74579, 270568), (86428, 233474), (89462, 225556), (112778, 178924), (116737, 172856), (135284, 149158), (135997, 148376)]