64819700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{487}}^1$

素因数の和:534

約数の個数: 72

約数和(自身を含む): 155031744

約数和(自身を除く): 90212044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 487, 550, 605, 974, 1100, 1210, 1331, 1948, 2420, 2435, 2662, 3025, 4870, 5324, 5357, 6050, 6655, 9740, 10714, 12100, 12175, 13310, 21428, 24350, 26620, 26785, 33275, 48700, 53570, 58927, 66550, 107140, 117854, 133100, 133925, 235708, 267850, 294635, 535700, 589270, 648197, 1178540, 1296394, 1473175, 2592788, 2946350, 3240985, 5892700, 6481970, 12963940, 16204925, 32409850, 64819700]

約数ペア:

[(1, 64819700), (2, 32409850), (4, 16204925), (5, 12963940), (10, 6481970), (11, 5892700), (20, 3240985), (22, 2946350), (25, 2592788), (44, 1473175), (50, 1296394), (55, 1178540), (100, 648197), (110, 589270), (121, 535700), (220, 294635), (242, 267850), (275, 235708), (484, 133925), (487, 133100), (550, 117854), (605, 107140), (974, 66550), (1100, 58927), (1210, 53570), (1331, 48700), (1948, 33275), (2420, 26785), (2435, 26620), (2662, 24350), (3025, 21428), (4870, 13310), (5324, 12175), (5357, 12100), (6050, 10714), (6655, 9740)]