31000400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4079}}^1$

素因数の和:4116

約数の個数: 60

約数和(自身を含む): 78417600

約数和(自身を除く): 47417200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 4079, 7600, 8158, 16316, 20395, 32632, 40790, 65264, 77501, 81580, 101975, 155002, 163160, 203950, 310004, 326320, 387505, 407900, 620008, 775010, 815800, 1240016, 1550020, 1631600, 1937525, 3100040, 3875050, 6200080, 7750100, 15500200, 31000400]

約数ペア:

[(1, 31000400), (2, 15500200), (4, 7750100), (5, 6200080), (8, 3875050), (10, 3100040), (16, 1937525), (19, 1631600), (20, 1550020), (25, 1240016), (38, 815800), (40, 775010), (50, 620008), (76, 407900), (80, 387505), (95, 326320), (100, 310004), (152, 203950), (190, 163160), (200, 155002), (304, 101975), (380, 81580), (400, 77501), (475, 65264), (760, 40790), (950, 32632), (1520, 20395), (1900, 16316), (3800, 8158), (4079, 7600)]