90244220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 211150800

約数和(自身を除く): 120906580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 121, 178, 220, 242, 356, 419, 445, 484, 605, 838, 890, 979, 1210, 1676, 1780, 1958, 2095, 2420, 3916, 4190, 4609, 4895, 8380, 9218, 9790, 10769, 18436, 19580, 21538, 23045, 37291, 43076, 46090, 50699, 53845, 74582, 92180, 101398, 107690, 149164, 186455, 202796, 215380, 253495, 372910, 410201, 506990, 745820, 820402, 1013980, 1640804, 2051005, 4102010, 4512211, 8204020, 9024422, 18048844, 22561055, 45122110, 90244220]

約数ペア:

[(1, 90244220), (2, 45122110), (4, 22561055), (5, 18048844), (10, 9024422), (11, 8204020), (20, 4512211), (22, 4102010), (44, 2051005), (55, 1640804), (89, 1013980), (110, 820402), (121, 745820), (178, 506990), (220, 410201), (242, 372910), (356, 253495), (419, 215380), (445, 202796), (484, 186455), (605, 149164), (838, 107690), (890, 101398), (979, 92180), (1210, 74582), (1676, 53845), (1780, 50699), (1958, 46090), (2095, 43076), (2420, 37291), (3916, 23045), (4190, 21538), (4609, 19580), (4895, 18436), (8380, 10769), (9218, 9790)]