20853390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1319}}^1$

素因数の和:1377

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33889650

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 31, 34, 51, 62, 85, 93, 102, 155, 170, 186, 255, 310, 465, 510, 527, 930, 1054, 1319, 1581, 2635, 2638, 3162, 3957, 5270, 6595, 7905, 7914, 13190, 15810, 19785, 22423, 39570, 40889, 44846, 67269, 81778, 112115, 122667, 134538, 204445, 224230, 245334, 336345, 408890, 613335, 672690, 695113, 1226670, 1390226, 2085339, 3475565, 4170678, 6951130, 10426695, 20853390]

約数ペア:

[(1, 20853390), (2, 10426695), (3, 6951130), (5, 4170678), (6, 3475565), (10, 2085339), (15, 1390226), (17, 1226670), (30, 695113), (31, 672690), (34, 613335), (51, 408890), (62, 336345), (85, 245334), (93, 224230), (102, 204445), (155, 134538), (170, 122667), (186, 112115), (255, 81778), (310, 67269), (465, 44846), (510, 40889), (527, 39570), (930, 22423), (1054, 19785), (1319, 15810), (1581, 13190), (2635, 7914), (2638, 7905), (3162, 6595), (3957, 5270)]