28396575

素因数分解:

$3^4\times 5^2\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:438

約数の個数: 60

約数和(自身を含む): 54164440

約数和(自身を除く): 25767865

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 81, 111, 135, 185, 225, 333, 379, 405, 555, 675, 925, 999, 1137, 1665, 1895, 2025, 2775, 2997, 3411, 4995, 5685, 8325, 9475, 10233, 14023, 14985, 17055, 24975, 28425, 30699, 42069, 51165, 70115, 74925, 85275, 126207, 153495, 210345, 255825, 350575, 378621, 631035, 767475, 1051725, 1135863, 1893105, 3155175, 5679315, 9465525, 28396575]

約数ペア:

[(1, 28396575), (3, 9465525), (5, 5679315), (9, 3155175), (15, 1893105), (25, 1135863), (27, 1051725), (37, 767475), (45, 631035), (75, 378621), (81, 350575), (111, 255825), (135, 210345), (185, 153495), (225, 126207), (333, 85275), (379, 74925), (405, 70115), (555, 51165), (675, 42069), (925, 30699), (999, 28425), (1137, 24975), (1665, 17055), (1895, 14985), (2025, 14023), (2775, 10233), (2997, 9475), (3411, 8325), (4995, 5685)]