63947940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21751}}^1$

素因数の和:21777

約数の個数: 72

約数和(自身を含む): 208297152

約数和(自身を除く): 144349212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 21751, 43502, 65253, 87004, 108755, 130506, 152257, 217510, 261012, 304514, 326265, 435020, 456771, 609028, 652530, 761285, 913542, 1065799, 1305060, 1522570, 1827084, 2131598, 2283855, 3045140, 3197397, 4263196, 4567710, 5328995, 6394794, 9135420, 10657990, 12789588, 15986985, 21315980, 31973970, 63947940]

約数ペア:

[(1, 63947940), (2, 31973970), (3, 21315980), (4, 15986985), (5, 12789588), (6, 10657990), (7, 9135420), (10, 6394794), (12, 5328995), (14, 4567710), (15, 4263196), (20, 3197397), (21, 3045140), (28, 2283855), (30, 2131598), (35, 1827084), (42, 1522570), (49, 1305060), (60, 1065799), (70, 913542), (84, 761285), (98, 652530), (105, 609028), (140, 456771), (147, 435020), (196, 326265), (210, 304514), (245, 261012), (294, 217510), (420, 152257), (490, 130506), (588, 108755), (735, 87004), (980, 65253), (1470, 43502), (2940, 21751)]