30881880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:913

約数の個数: 96

約数和(自身を含む): 101415600

約数和(自身を除く): 70533720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 109, 120, 180, 218, 327, 360, 436, 545, 654, 787, 872, 981, 1090, 1308, 1574, 1635, 1962, 2180, 2361, 2616, 3148, 3270, 3924, 3935, 4360, 4722, 4905, 6296, 6540, 7083, 7848, 7870, 9444, 9810, 11805, 13080, 14166, 15740, 18888, 19620, 23610, 28332, 31480, 35415, 39240, 47220, 56664, 70830, 85783, 94440, 141660, 171566, 257349, 283320, 343132, 428915, 514698, 686264, 772047, 857830, 1029396, 1286745, 1544094, 1715660, 2058792, 2573490, 3088188, 3431320, 3860235, 5146980, 6176376, 7720470, 10293960, 15440940, 30881880]

約数ペア:

[(1, 30881880), (2, 15440940), (3, 10293960), (4, 7720470), (5, 6176376), (6, 5146980), (8, 3860235), (9, 3431320), (10, 3088188), (12, 2573490), (15, 2058792), (18, 1715660), (20, 1544094), (24, 1286745), (30, 1029396), (36, 857830), (40, 772047), (45, 686264), (60, 514698), (72, 428915), (90, 343132), (109, 283320), (120, 257349), (180, 171566), (218, 141660), (327, 94440), (360, 85783), (436, 70830), (545, 56664), (654, 47220), (787, 39240), (872, 35415), (981, 31480), (1090, 28332), (1308, 23610), (1574, 19620), (1635, 18888), (1962, 15740), (2180, 14166), (2361, 13080), (2616, 11805), (3148, 9810), (3270, 9444), (3924, 7870), (3935, 7848), (4360, 7083), (4722, 6540), (4905, 6296)]