54021220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^2$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 129201408

約数和(自身を除く): 75180188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 89, 110, 124, 155, 178, 220, 310, 341, 356, 445, 620, 682, 890, 979, 1364, 1705, 1780, 1958, 2759, 3410, 3916, 4895, 5518, 6820, 7921, 9790, 11036, 13795, 15842, 19580, 27590, 30349, 31684, 39605, 55180, 60698, 79210, 87131, 121396, 151745, 158420, 174262, 245551, 303490, 348524, 435655, 491102, 606980, 871310, 982204, 1227755, 1742620, 2455510, 2701061, 4911020, 5402122, 10804244, 13505305, 27010610, 54021220]

約数ペア:

[(1, 54021220), (2, 27010610), (4, 13505305), (5, 10804244), (10, 5402122), (11, 4911020), (20, 2701061), (22, 2455510), (31, 1742620), (44, 1227755), (55, 982204), (62, 871310), (89, 606980), (110, 491102), (124, 435655), (155, 348524), (178, 303490), (220, 245551), (310, 174262), (341, 158420), (356, 151745), (445, 121396), (620, 87131), (682, 79210), (890, 60698), (979, 55180), (1364, 39605), (1705, 31684), (1780, 30349), (1958, 27590), (2759, 19580), (3410, 15842), (3916, 13795), (4895, 11036), (5518, 9790), (6820, 7921)]