30681320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 72230400

約数和(自身を除く): 41549080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 227, 248, 310, 436, 454, 545, 620, 872, 908, 1090, 1135, 1240, 1816, 2180, 2270, 3379, 4360, 4540, 6758, 7037, 9080, 13516, 14074, 16895, 24743, 27032, 28148, 33790, 35185, 49486, 56296, 67580, 70370, 98972, 123715, 135160, 140740, 197944, 247430, 281480, 494860, 767033, 989720, 1534066, 3068132, 3835165, 6136264, 7670330, 15340660, 30681320]

約数ペア:

[(1, 30681320), (2, 15340660), (4, 7670330), (5, 6136264), (8, 3835165), (10, 3068132), (20, 1534066), (31, 989720), (40, 767033), (62, 494860), (109, 281480), (124, 247430), (155, 197944), (218, 140740), (227, 135160), (248, 123715), (310, 98972), (436, 70370), (454, 67580), (545, 56296), (620, 49486), (872, 35185), (908, 33790), (1090, 28148), (1135, 27032), (1240, 24743), (1816, 16895), (2180, 14074), (2270, 13516), (3379, 9080), (4360, 7037), (4540, 6758)]