18987480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17581}}^1$

素因数の和:17601

約数の個数: 64

約数和(自身を含む): 63295200

約数和(自身を除く): 44307720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 17581, 35162, 52743, 70324, 87905, 105486, 140648, 158229, 175810, 210972, 263715, 316458, 351620, 421944, 474687, 527430, 632916, 703240, 791145, 949374, 1054860, 1265832, 1582290, 1898748, 2109720, 2373435, 3164580, 3797496, 4746870, 6329160, 9493740, 18987480]

約数ペア:

[(1, 18987480), (2, 9493740), (3, 6329160), (4, 4746870), (5, 3797496), (6, 3164580), (8, 2373435), (9, 2109720), (10, 1898748), (12, 1582290), (15, 1265832), (18, 1054860), (20, 949374), (24, 791145), (27, 703240), (30, 632916), (36, 527430), (40, 474687), (45, 421944), (54, 351620), (60, 316458), (72, 263715), (90, 210972), (108, 175810), (120, 158229), (135, 140648), (180, 105486), (216, 87905), (270, 70324), (360, 52743), (540, 35162), (1080, 17581)]