20395680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42491}}^1$

素因数の和:42509

約数の個数: 48

約数和(自身を含む): 64247904

約数和(自身を除く): 43852224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42491, 84982, 127473, 169964, 212455, 254946, 339928, 424910, 509892, 637365, 679856, 849820, 1019784, 1274730, 1359712, 1699640, 2039568, 2549460, 3399280, 4079136, 5098920, 6798560, 10197840, 20395680]

約数ペア:

[(1, 20395680), (2, 10197840), (3, 6798560), (4, 5098920), (5, 4079136), (6, 3399280), (8, 2549460), (10, 2039568), (12, 1699640), (15, 1359712), (16, 1274730), (20, 1019784), (24, 849820), (30, 679856), (32, 637365), (40, 509892), (48, 424910), (60, 339928), (80, 254946), (96, 212455), (120, 169964), (160, 127473), (240, 84982), (480, 42491)]