28474160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 160

約数和(自身を含む): 82494720

約数和(自身を除く): 54020560

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 80, 88, 95, 104, 110, 130, 131, 143, 152, 176, 190, 208, 209, 220, 247, 260, 262, 286, 304, 380, 418, 440, 494, 520, 524, 572, 655, 715, 760, 836, 880, 988, 1040, 1045, 1048, 1144, 1235, 1310, 1430, 1441, 1520, 1672, 1703, 1976, 2090, 2096, 2288, 2470, 2489, 2620, 2717, 2860, 2882, 3344, 3406, 3952, 4180, 4940, 4978, 5240, 5434, 5720, 5764, 6812, 7205, 8360, 8515, 9880, 9956, 10480, 10868, 11440, 11528, 12445, 13585, 13624, 14410, 16720, 17030, 18733, 19760, 19912, 21736, 23056, 24890, 27170, 27248, 27379, 28820, 32357, 34060, 37466, 39824, 43472, 49780, 54340, 54758, 57640, 64714, 68120, 74932, 93665, 99560, 108680, 109516, 115280, 129428, 136240, 136895, 149864, 161785, 187330, 199120, 217360, 219032, 258856, 273790, 299728, 323570, 355927, 374660, 438064, 517712, 547580, 647140, 711854, 749320, 1095160, 1294280, 1423708, 1498640, 1779635, 2190320, 2588560, 2847416, 3559270, 5694832, 7118540, 14237080, 28474160]

約数ペア:

[(1, 28474160), (2, 14237080), (4, 7118540), (5, 5694832), (8, 3559270), (10, 2847416), (11, 2588560), (13, 2190320), (16, 1779635), (19, 1498640), (20, 1423708), (22, 1294280), (26, 1095160), (38, 749320), (40, 711854), (44, 647140), (52, 547580), (55, 517712), (65, 438064), (76, 374660), (80, 355927), (88, 323570), (95, 299728), (104, 273790), (110, 258856), (130, 219032), (131, 217360), (143, 199120), (152, 187330), (176, 161785), (190, 149864), (208, 136895), (209, 136240), (220, 129428), (247, 115280), (260, 109516), (262, 108680), (286, 99560), (304, 93665), (380, 74932), (418, 68120), (440, 64714), (494, 57640), (520, 54758), (524, 54340), (572, 49780), (655, 43472), (715, 39824), (760, 37466), (836, 34060), (880, 32357), (988, 28820), (1040, 27379), (1045, 27248), (1048, 27170), (1144, 24890), (1235, 23056), (1310, 21736), (1430, 19912), (1441, 19760), (1520, 18733), (1672, 17030), (1703, 16720), (1976, 14410), (2090, 13624), (2096, 13585), (2288, 12445), (2470, 11528), (2489, 11440), (2620, 10868), (2717, 10480), (2860, 9956), (2882, 9880), (3344, 8515), (3406, 8360), (3952, 7205), (4180, 6812), (4940, 5764), (4978, 5720), (5240, 5434)]