20200440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:613

約数の個数: 128

約数和(自身を含む): 68221440

約数和(自身を除く): 48021000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 563, 598, 690, 780, 897, 920, 1126, 1196, 1380, 1495, 1560, 1689, 1794, 2252, 2392, 2760, 2815, 2990, 3378, 3588, 4485, 4504, 5630, 5980, 6756, 7176, 7319, 8445, 8970, 11260, 11960, 12949, 13512, 14638, 16890, 17940, 21957, 22520, 25898, 29276, 33780, 35880, 36595, 38847, 43914, 51796, 58552, 64745, 67560, 73190, 77694, 87828, 103592, 109785, 129490, 146380, 155388, 168337, 175656, 194235, 219570, 258980, 292760, 310776, 336674, 388470, 439140, 505011, 517960, 673348, 776940, 841685, 878280, 1010022, 1346696, 1553880, 1683370, 2020044, 2525055, 3366740, 4040088, 5050110, 6733480, 10100220, 20200440]

約数ペア:

[(1, 20200440), (2, 10100220), (3, 6733480), (4, 5050110), (5, 4040088), (6, 3366740), (8, 2525055), (10, 2020044), (12, 1683370), (13, 1553880), (15, 1346696), (20, 1010022), (23, 878280), (24, 841685), (26, 776940), (30, 673348), (39, 517960), (40, 505011), (46, 439140), (52, 388470), (60, 336674), (65, 310776), (69, 292760), (78, 258980), (92, 219570), (104, 194235), (115, 175656), (120, 168337), (130, 155388), (138, 146380), (156, 129490), (184, 109785), (195, 103592), (230, 87828), (260, 77694), (276, 73190), (299, 67560), (312, 64745), (345, 58552), (390, 51796), (460, 43914), (520, 38847), (552, 36595), (563, 35880), (598, 33780), (690, 29276), (780, 25898), (897, 22520), (920, 21957), (1126, 17940), (1196, 16890), (1380, 14638), (1495, 13512), (1560, 12949), (1689, 11960), (1794, 11260), (2252, 8970), (2392, 8445), (2760, 7319), (2815, 7176), (2990, 6756), (3378, 5980), (3588, 5630), (4485, 4504)]