20756250

素因数分解:

$2^1\times 3^4\times 5^5\times {\mathrm{41}}^1$

素因数の和:80

約数の個数: 120

約数和(自身を含む): 59550876

約数和(自身を除く): 38794626

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 41, 45, 50, 54, 75, 81, 82, 90, 123, 125, 135, 150, 162, 205, 225, 246, 250, 270, 369, 375, 405, 410, 450, 615, 625, 675, 738, 750, 810, 1025, 1107, 1125, 1230, 1250, 1350, 1845, 1875, 2025, 2050, 2214, 2250, 3075, 3125, 3321, 3375, 3690, 3750, 4050, 5125, 5535, 5625, 6150, 6250, 6642, 6750, 9225, 9375, 10125, 10250, 11070, 11250, 15375, 16605, 16875, 18450, 18750, 20250, 25625, 27675, 28125, 30750, 33210, 33750, 46125, 50625, 51250, 55350, 56250, 76875, 83025, 84375, 92250, 101250, 128125, 138375, 153750, 166050, 168750, 230625, 253125, 256250, 276750, 384375, 415125, 461250, 506250, 691875, 768750, 830250, 1153125, 1383750, 2075625, 2306250, 3459375, 4151250, 6918750, 10378125, 20756250]

約数ペア:

[(1, 20756250), (2, 10378125), (3, 6918750), (5, 4151250), (6, 3459375), (9, 2306250), (10, 2075625), (15, 1383750), (18, 1153125), (25, 830250), (27, 768750), (30, 691875), (41, 506250), (45, 461250), (50, 415125), (54, 384375), (75, 276750), (81, 256250), (82, 253125), (90, 230625), (123, 168750), (125, 166050), (135, 153750), (150, 138375), (162, 128125), (205, 101250), (225, 92250), (246, 84375), (250, 83025), (270, 76875), (369, 56250), (375, 55350), (405, 51250), (410, 50625), (450, 46125), (615, 33750), (625, 33210), (675, 30750), (738, 28125), (750, 27675), (810, 25625), (1025, 20250), (1107, 18750), (1125, 18450), (1230, 16875), (1250, 16605), (1350, 15375), (1845, 11250), (1875, 11070), (2025, 10250), (2050, 10125), (2214, 9375), (2250, 9225), (3075, 6750), (3125, 6642), (3321, 6250), (3375, 6150), (3690, 5625), (3750, 5535), (4050, 5125)]