20138381475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{887}}^1\times {\mathrm{17807}}^1$

素因数の和:18724

約数の個数: 48

約数和(自身を含む): 35295740928

約数和(自身を除く): 15157359453

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 887, 1275, 2661, 4435, 13305, 15079, 17807, 22175, 45237, 53421, 66525, 75395, 89035, 226185, 267105, 302719, 376975, 445175, 908157, 1130925, 1335525, 1513595, 4540785, 7567975, 15794809, 22703925, 47384427, 78974045, 236922135, 268511753, 394870225, 805535259, 1184610675, 1342558765, 4027676295, 6712793825, 20138381475]

約数ペア:

[(1, 20138381475), (3, 6712793825), (5, 4027676295), (15, 1342558765), (17, 1184610675), (25, 805535259), (51, 394870225), (75, 268511753), (85, 236922135), (255, 78974045), (425, 47384427), (887, 22703925), (1275, 15794809), (2661, 7567975), (4435, 4540785), (13305, 1513595), (15079, 1335525), (17807, 1130925), (22175, 908157), (45237, 445175), (53421, 376975), (66525, 302719), (75395, 267105), (89035, 226185)]