28001925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{773}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 59889024

約数和(自身を除く): 31887099

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 63, 69, 75, 105, 115, 161, 175, 207, 225, 315, 345, 483, 525, 575, 773, 805, 1035, 1449, 1575, 1725, 2319, 2415, 3865, 4025, 5175, 5411, 6957, 7245, 11595, 12075, 16233, 17779, 19325, 27055, 34785, 36225, 48699, 53337, 57975, 81165, 88895, 124453, 135275, 160011, 173925, 243495, 266685, 373359, 405825, 444475, 622265, 800055, 1120077, 1217475, 1333425, 1866795, 3111325, 4000275, 5600385, 9333975, 28001925]

約数ペア:

[(1, 28001925), (3, 9333975), (5, 5600385), (7, 4000275), (9, 3111325), (15, 1866795), (21, 1333425), (23, 1217475), (25, 1120077), (35, 800055), (45, 622265), (63, 444475), (69, 405825), (75, 373359), (105, 266685), (115, 243495), (161, 173925), (175, 160011), (207, 135275), (225, 124453), (315, 88895), (345, 81165), (483, 57975), (525, 53337), (575, 48699), (773, 36225), (805, 34785), (1035, 27055), (1449, 19325), (1575, 17779), (1725, 16233), (2319, 12075), (2415, 11595), (3865, 7245), (4025, 6957), (5175, 5411)]