20444625

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1069}}^1$

素因数の和:1107

約数の個数: 48

約数和(自身を含む): 39059280

約数和(自身を除く): 18614655

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 125, 153, 225, 255, 375, 425, 765, 1069, 1125, 1275, 2125, 3207, 3825, 5345, 6375, 9621, 16035, 18173, 19125, 26725, 48105, 54519, 80175, 90865, 133625, 163557, 240525, 272595, 400875, 454325, 817785, 1202625, 1362975, 2271625, 4088925, 6814875, 20444625]

約数ペア:

[(1, 20444625), (3, 6814875), (5, 4088925), (9, 2271625), (15, 1362975), (17, 1202625), (25, 817785), (45, 454325), (51, 400875), (75, 272595), (85, 240525), (125, 163557), (153, 133625), (225, 90865), (255, 80175), (375, 54519), (425, 48105), (765, 26725), (1069, 19125), (1125, 18173), (1275, 16035), (2125, 9621), (3207, 6375), (3825, 5345)]