15563020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 36867600

約数和(自身を除く): 21304580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 109, 110, 118, 121, 218, 220, 236, 242, 295, 436, 484, 545, 590, 605, 649, 1090, 1180, 1199, 1210, 1298, 2180, 2398, 2420, 2596, 3245, 4796, 5995, 6431, 6490, 7139, 11990, 12862, 12980, 13189, 14278, 23980, 25724, 26378, 28556, 32155, 35695, 52756, 64310, 65945, 70741, 71390, 128620, 131890, 141482, 142780, 263780, 282964, 353705, 707410, 778151, 1414820, 1556302, 3112604, 3890755, 7781510, 15563020]

約数ペア:

[(1, 15563020), (2, 7781510), (4, 3890755), (5, 3112604), (10, 1556302), (11, 1414820), (20, 778151), (22, 707410), (44, 353705), (55, 282964), (59, 263780), (109, 142780), (110, 141482), (118, 131890), (121, 128620), (218, 71390), (220, 70741), (236, 65945), (242, 64310), (295, 52756), (436, 35695), (484, 32155), (545, 28556), (590, 26378), (605, 25724), (649, 23980), (1090, 14278), (1180, 13189), (1199, 12980), (1210, 12862), (1298, 11990), (2180, 7139), (2398, 6490), (2420, 6431), (2596, 5995), (3245, 4796)]