388120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 904320

約数和(自身を除く): 516200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 313, 620, 626, 1240, 1252, 1565, 2504, 3130, 6260, 9703, 12520, 19406, 38812, 48515, 77624, 97030, 194060, 388120]

約数ペア:

[(1, 388120), (2, 194060), (4, 97030), (5, 77624), (8, 48515), (10, 38812), (20, 19406), (31, 12520), (40, 9703), (62, 6260), (124, 3130), (155, 2504), (248, 1565), (310, 1252), (313, 1240), (620, 626)]