30784240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12413}}^1$

素因数の和:12457

約数の個数: 40

約数和(自身を含む): 73888128

約数和(自身を除く): 43103888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12413, 24826, 49652, 62065, 99304, 124130, 198608, 248260, 384803, 496520, 769606, 993040, 1539212, 1924015, 3078424, 3848030, 6156848, 7696060, 15392120, 30784240]

約数ペア:

[(1, 30784240), (2, 15392120), (4, 7696060), (5, 6156848), (8, 3848030), (10, 3078424), (16, 1924015), (20, 1539212), (31, 993040), (40, 769606), (62, 496520), (80, 384803), (124, 248260), (155, 198608), (248, 124130), (310, 99304), (496, 62065), (620, 49652), (1240, 24826), (2480, 12413)]