31917440

素因数分解:

$2^7\times 5^1\times {\mathrm{49871}}^1$

素因数の和:49890

約数の個数: 32

約数和(自身を含む): 76304160

約数和(自身を除く): 44386720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 49871, 99742, 199484, 249355, 398968, 498710, 797936, 997420, 1595872, 1994840, 3191744, 3989680, 6383488, 7979360, 15958720, 31917440]

約数ペア:

[(1, 31917440), (2, 15958720), (4, 7979360), (5, 6383488), (8, 3989680), (10, 3191744), (16, 1994840), (20, 1595872), (32, 997420), (40, 797936), (64, 498710), (80, 398968), (128, 249355), (160, 199484), (320, 99742), (640, 49871)]