20917560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5623}}^1$

素因数の和:5668

約数の個数: 64

約数和(自身を含む): 64788480

約数和(自身を除く): 43870920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5623, 11246, 16869, 22492, 28115, 33738, 44984, 56230, 67476, 84345, 112460, 134952, 168690, 174313, 224920, 337380, 348626, 522939, 674760, 697252, 871565, 1045878, 1394504, 1743130, 2091756, 2614695, 3486260, 4183512, 5229390, 6972520, 10458780, 20917560]

約数ペア:

[(1, 20917560), (2, 10458780), (3, 6972520), (4, 5229390), (5, 4183512), (6, 3486260), (8, 2614695), (10, 2091756), (12, 1743130), (15, 1394504), (20, 1045878), (24, 871565), (30, 697252), (31, 674760), (40, 522939), (60, 348626), (62, 337380), (93, 224920), (120, 174313), (124, 168690), (155, 134952), (186, 112460), (248, 84345), (310, 67476), (372, 56230), (465, 44984), (620, 33738), (744, 28115), (930, 22492), (1240, 16869), (1860, 11246), (3720, 5623)]