30521960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1787}}^1$

素因数の和:1866

約数の個数: 64

約数和(自身を含む): 79816320

約数和(自身を除く): 49294360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 1787, 2135, 2440, 3416, 3574, 4270, 7148, 8540, 8935, 12509, 14296, 17080, 17870, 25018, 35740, 50036, 62545, 71480, 100072, 109007, 125090, 218014, 250180, 436028, 500360, 545035, 763049, 872056, 1090070, 1526098, 2180140, 3052196, 3815245, 4360280, 6104392, 7630490, 15260980, 30521960]

約数ペア:

[(1, 30521960), (2, 15260980), (4, 7630490), (5, 6104392), (7, 4360280), (8, 3815245), (10, 3052196), (14, 2180140), (20, 1526098), (28, 1090070), (35, 872056), (40, 763049), (56, 545035), (61, 500360), (70, 436028), (122, 250180), (140, 218014), (244, 125090), (280, 109007), (305, 100072), (427, 71480), (488, 62545), (610, 50036), (854, 35740), (1220, 25018), (1708, 17870), (1787, 17080), (2135, 14296), (2440, 12509), (3416, 8935), (3574, 8540), (4270, 7148)]