18642375

素因数分解:

$3^2\times 5^3\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 34216416

約数和(自身を除く): 15574041

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 125, 219, 225, 227, 365, 375, 657, 681, 1095, 1125, 1135, 1825, 2043, 3285, 3405, 5475, 5675, 9125, 10215, 16425, 16571, 17025, 27375, 28375, 49713, 51075, 82125, 82855, 85125, 149139, 248565, 255375, 414275, 745695, 1242825, 2071375, 3728475, 6214125, 18642375]

約数ペア:

[(1, 18642375), (3, 6214125), (5, 3728475), (9, 2071375), (15, 1242825), (25, 745695), (45, 414275), (73, 255375), (75, 248565), (125, 149139), (219, 85125), (225, 82855), (227, 82125), (365, 51075), (375, 49713), (657, 28375), (681, 27375), (1095, 17025), (1125, 16571), (1135, 16425), (1825, 10215), (2043, 9125), (3285, 5675), (3405, 5475)]