90434440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72931}}^1$

素因数の和:72973

約数の個数: 32

約数和(自身を含む): 210044160

約数和(自身を除く): 119609720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 72931, 145862, 291724, 364655, 583448, 729310, 1458620, 2260861, 2917240, 4521722, 9043444, 11304305, 18086888, 22608610, 45217220, 90434440]

約数ペア:

[(1, 90434440), (2, 45217220), (4, 22608610), (5, 18086888), (8, 11304305), (10, 9043444), (20, 4521722), (31, 2917240), (40, 2260861), (62, 1458620), (124, 729310), (155, 583448), (248, 364655), (310, 291724), (620, 145862), (1240, 72931)]