51266440

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 118787760

約数和(自身を除く): 67521320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 97, 146, 181, 194, 292, 362, 365, 388, 485, 584, 724, 730, 776, 905, 970, 1448, 1460, 1810, 1940, 2920, 3620, 3880, 7081, 7240, 13213, 14162, 17557, 26426, 28324, 35114, 35405, 52852, 56648, 66065, 70228, 70810, 87785, 105704, 132130, 140456, 141620, 175570, 264260, 283240, 351140, 528520, 702280, 1281661, 2563322, 5126644, 6408305, 10253288, 12816610, 25633220, 51266440]

約数ペア:

[(1, 51266440), (2, 25633220), (4, 12816610), (5, 10253288), (8, 6408305), (10, 5126644), (20, 2563322), (40, 1281661), (73, 702280), (97, 528520), (146, 351140), (181, 283240), (194, 264260), (292, 175570), (362, 141620), (365, 140456), (388, 132130), (485, 105704), (584, 87785), (724, 70810), (730, 70228), (776, 66065), (905, 56648), (970, 52852), (1448, 35405), (1460, 35114), (1810, 28324), (1940, 26426), (2920, 17557), (3620, 14162), (3880, 13213), (7081, 7240)]