12942800

素因数分解:

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

素因数の和:181

約数の個数: 120

約数和(自身を含む): 35518560

約数和(自身を除く): 22575760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 130, 131, 152, 190, 200, 208, 247, 260, 262, 304, 325, 380, 400, 475, 494, 520, 524, 650, 655, 760, 950, 988, 1040, 1048, 1235, 1300, 1310, 1520, 1703, 1900, 1976, 2096, 2470, 2489, 2600, 2620, 3275, 3406, 3800, 3952, 4940, 4978, 5200, 5240, 6175, 6550, 6812, 7600, 8515, 9880, 9956, 10480, 12350, 12445, 13100, 13624, 17030, 19760, 19912, 24700, 24890, 26200, 27248, 32357, 34060, 39824, 42575, 49400, 49780, 52400, 62225, 64714, 68120, 85150, 98800, 99560, 124450, 129428, 136240, 161785, 170300, 199120, 248900, 258856, 323570, 340600, 497800, 517712, 647140, 681200, 808925, 995600, 1294280, 1617850, 2588560, 3235700, 6471400, 12942800]

約数ペア:

[(1, 12942800), (2, 6471400), (4, 3235700), (5, 2588560), (8, 1617850), (10, 1294280), (13, 995600), (16, 808925), (19, 681200), (20, 647140), (25, 517712), (26, 497800), (38, 340600), (40, 323570), (50, 258856), (52, 248900), (65, 199120), (76, 170300), (80, 161785), (95, 136240), (100, 129428), (104, 124450), (130, 99560), (131, 98800), (152, 85150), (190, 68120), (200, 64714), (208, 62225), (247, 52400), (260, 49780), (262, 49400), (304, 42575), (325, 39824), (380, 34060), (400, 32357), (475, 27248), (494, 26200), (520, 24890), (524, 24700), (650, 19912), (655, 19760), (760, 17030), (950, 13624), (988, 13100), (1040, 12445), (1048, 12350), (1235, 10480), (1300, 9956), (1310, 9880), (1520, 8515), (1703, 7600), (1900, 6812), (1976, 6550), (2096, 6175), (2470, 5240), (2489, 5200), (2600, 4978), (2620, 4940), (3275, 3952), (3406, 3800)]