51816820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{743}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 119242368

約数和(自身を除く): 67425548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 317, 634, 743, 1268, 1486, 1585, 2972, 3170, 3487, 3715, 6340, 6974, 7430, 8173, 13948, 14860, 16346, 17435, 32692, 34870, 40865, 69740, 81730, 163460, 235531, 471062, 942124, 1177655, 2355310, 2590841, 4710620, 5181682, 10363364, 12954205, 25908410, 51816820]

約数ペア:

[(1, 51816820), (2, 25908410), (4, 12954205), (5, 10363364), (10, 5181682), (11, 4710620), (20, 2590841), (22, 2355310), (44, 1177655), (55, 942124), (110, 471062), (220, 235531), (317, 163460), (634, 81730), (743, 69740), (1268, 40865), (1486, 34870), (1585, 32692), (2972, 17435), (3170, 16346), (3487, 14860), (3715, 13948), (6340, 8173), (6974, 7430)]