123215456

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 192

約数和(自身を含む): 335301120

約数和(自身を除く): 212085664

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 19, 26, 28, 32, 34, 38, 52, 56, 68, 76, 91, 104, 112, 119, 131, 133, 136, 152, 182, 208, 221, 224, 238, 247, 262, 266, 272, 304, 323, 364, 416, 442, 476, 494, 524, 532, 544, 608, 646, 728, 884, 917, 952, 988, 1048, 1064, 1292, 1456, 1547, 1703, 1729, 1768, 1834, 1904, 1976, 2096, 2128, 2227, 2261, 2489, 2584, 2912, 3094, 3406, 3458, 3536, 3668, 3808, 3952, 4192, 4199, 4256, 4454, 4522, 4978, 5168, 6188, 6812, 6916, 7072, 7336, 7904, 8398, 8908, 9044, 9956, 10336, 11921, 12376, 13624, 13832, 14672, 15589, 16796, 17423, 17816, 18088, 19912, 23842, 24752, 27248, 27664, 28951, 29344, 29393, 31178, 32357, 33592, 34846, 35632, 36176, 39824, 42313, 47684, 49504, 54496, 55328, 57902, 58786, 62356, 64714, 67184, 69692, 71264, 72352, 79648, 84626, 95368, 115804, 117572, 124712, 129428, 134368, 139384, 169252, 190736, 202657, 226499, 231608, 235144, 249424, 258856, 278768, 296191, 338504, 381472, 405314, 452998, 463216, 470288, 498848, 517712, 550069, 557536, 592382, 677008, 810628, 905996, 926432, 940576, 1035424, 1100138, 1184764, 1354016, 1621256, 1811992, 2200276, 2369528, 3242512, 3623984, 3850483, 4400552, 4739056, 6485024, 7247968, 7700966, 8801104, 9478112, 15401932, 17602208, 30803864, 61607728, 123215456]

約数ペア:

[(1, 123215456), (2, 61607728), (4, 30803864), (7, 17602208), (8, 15401932), (13, 9478112), (14, 8801104), (16, 7700966), (17, 7247968), (19, 6485024), (26, 4739056), (28, 4400552), (32, 3850483), (34, 3623984), (38, 3242512), (52, 2369528), (56, 2200276), (68, 1811992), (76, 1621256), (91, 1354016), (104, 1184764), (112, 1100138), (119, 1035424), (131, 940576), (133, 926432), (136, 905996), (152, 810628), (182, 677008), (208, 592382), (221, 557536), (224, 550069), (238, 517712), (247, 498848), (262, 470288), (266, 463216), (272, 452998), (304, 405314), (323, 381472), (364, 338504), (416, 296191), (442, 278768), (476, 258856), (494, 249424), (524, 235144), (532, 231608), (544, 226499), (608, 202657), (646, 190736), (728, 169252), (884, 139384), (917, 134368), (952, 129428), (988, 124712), (1048, 117572), (1064, 115804), (1292, 95368), (1456, 84626), (1547, 79648), (1703, 72352), (1729, 71264), (1768, 69692), (1834, 67184), (1904, 64714), (1976, 62356), (2096, 58786), (2128, 57902), (2227, 55328), (2261, 54496), (2489, 49504), (2584, 47684), (2912, 42313), (3094, 39824), (3406, 36176), (3458, 35632), (3536, 34846), (3668, 33592), (3808, 32357), (3952, 31178), (4192, 29393), (4199, 29344), (4256, 28951), (4454, 27664), (4522, 27248), (4978, 24752), (5168, 23842), (6188, 19912), (6812, 18088), (6916, 17816), (7072, 17423), (7336, 16796), (7904, 15589), (8398, 14672), (8908, 13832), (9044, 13624), (9956, 12376), (10336, 11921)]