156974440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{283}}^2$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 412313490

約数和(自身を除く): 255339050

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 283, 392, 490, 566, 980, 1132, 1415, 1960, 1981, 2264, 2830, 3962, 5660, 7924, 9905, 11320, 13867, 15848, 19810, 27734, 39620, 55468, 69335, 79240, 80089, 110936, 138670, 160178, 277340, 320356, 400445, 554680, 560623, 640712, 800890, 1121246, 1601780, 2242492, 2803115, 3203560, 3924361, 4484984, 5606230, 7848722, 11212460, 15697444, 19621805, 22424920, 31394888, 39243610, 78487220, 156974440]

約数ペア:

[(1, 156974440), (2, 78487220), (4, 39243610), (5, 31394888), (7, 22424920), (8, 19621805), (10, 15697444), (14, 11212460), (20, 7848722), (28, 5606230), (35, 4484984), (40, 3924361), (49, 3203560), (56, 2803115), (70, 2242492), (98, 1601780), (140, 1121246), (196, 800890), (245, 640712), (280, 560623), (283, 554680), (392, 400445), (490, 320356), (566, 277340), (980, 160178), (1132, 138670), (1415, 110936), (1960, 80089), (1981, 79240), (2264, 69335), (2830, 55468), (3962, 39620), (5660, 27734), (7924, 19810), (9905, 15848), (11320, 13867)]