19017350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:581

約数の個数: 48

約数和(自身を含む): 39211776

約数和(自身を除く): 20194426

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 487, 550, 710, 781, 974, 1562, 1775, 2435, 3550, 3905, 4870, 5357, 7810, 10714, 12175, 19525, 24350, 26785, 34577, 39050, 53570, 69154, 133925, 172885, 267850, 345770, 380347, 760694, 864425, 1728850, 1901735, 3803470, 9508675, 19017350]

約数ペア:

[(1, 19017350), (2, 9508675), (5, 3803470), (10, 1901735), (11, 1728850), (22, 864425), (25, 760694), (50, 380347), (55, 345770), (71, 267850), (110, 172885), (142, 133925), (275, 69154), (355, 53570), (487, 39050), (550, 34577), (710, 26785), (781, 24350), (974, 19525), (1562, 12175), (1775, 10714), (2435, 7810), (3550, 5357), (3905, 4870)]