25640460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:983

約数の個数: 72

約数和(自身を含む): 78305136

約数和(自身を除く): 52664676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 787, 905, 1086, 1574, 1629, 1810, 2172, 2361, 2715, 3148, 3258, 3620, 3935, 4722, 5430, 6516, 7083, 7870, 8145, 9444, 10860, 11805, 14166, 15740, 16290, 23610, 28332, 32580, 35415, 47220, 70830, 141660, 142447, 284894, 427341, 569788, 712235, 854682, 1282023, 1424470, 1709364, 2136705, 2564046, 2848940, 4273410, 5128092, 6410115, 8546820, 12820230, 25640460]

約数ペア:

[(1, 25640460), (2, 12820230), (3, 8546820), (4, 6410115), (5, 5128092), (6, 4273410), (9, 2848940), (10, 2564046), (12, 2136705), (15, 1709364), (18, 1424470), (20, 1282023), (30, 854682), (36, 712235), (45, 569788), (60, 427341), (90, 284894), (180, 142447), (181, 141660), (362, 70830), (543, 47220), (724, 35415), (787, 32580), (905, 28332), (1086, 23610), (1574, 16290), (1629, 15740), (1810, 14166), (2172, 11805), (2361, 10860), (2715, 9444), (3148, 8145), (3258, 7870), (3620, 7083), (3935, 6516), (4722, 5430)]