399403380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{214733}}^1$

素因数の和:214776

約数の個数: 48

約数和(自身を含む): 1154409984

約数和(自身を除く): 755006604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 214733, 429466, 644199, 858932, 1073665, 1288398, 2147330, 2576796, 3220995, 4294660, 6441990, 6656723, 12883980, 13313446, 19970169, 26626892, 33283615, 39940338, 66567230, 79880676, 99850845, 133134460, 199701690, 399403380]

約数ペア:

[(1, 399403380), (2, 199701690), (3, 133134460), (4, 99850845), (5, 79880676), (6, 66567230), (10, 39940338), (12, 33283615), (15, 26626892), (20, 19970169), (30, 13313446), (31, 12883980), (60, 6656723), (62, 6441990), (93, 4294660), (124, 3220995), (155, 2576796), (186, 2147330), (310, 1288398), (372, 1073665), (465, 858932), (620, 644199), (930, 429466), (1860, 214733)]