90807920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{971}}^1$

素因数の和:1158

約数の個数: 80

約数和(自身を含む): 242984448

約数和(自身を除く): 152176528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 167, 280, 334, 560, 668, 835, 971, 1169, 1336, 1670, 1942, 2338, 2672, 3340, 3884, 4676, 4855, 5845, 6680, 6797, 7768, 9352, 9710, 11690, 13360, 13594, 15536, 18704, 19420, 23380, 27188, 33985, 38840, 46760, 54376, 67970, 77680, 93520, 108752, 135940, 162157, 271880, 324314, 543760, 648628, 810785, 1135099, 1297256, 1621570, 2270198, 2594512, 3243140, 4540396, 5675495, 6486280, 9080792, 11350990, 12972560, 18161584, 22701980, 45403960, 90807920]

約数ペア:

[(1, 90807920), (2, 45403960), (4, 22701980), (5, 18161584), (7, 12972560), (8, 11350990), (10, 9080792), (14, 6486280), (16, 5675495), (20, 4540396), (28, 3243140), (35, 2594512), (40, 2270198), (56, 1621570), (70, 1297256), (80, 1135099), (112, 810785), (140, 648628), (167, 543760), (280, 324314), (334, 271880), (560, 162157), (668, 135940), (835, 108752), (971, 93520), (1169, 77680), (1336, 67970), (1670, 54376), (1942, 46760), (2338, 38840), (2672, 33985), (3340, 27188), (3884, 23380), (4676, 19420), (4855, 18704), (5845, 15536), (6680, 13594), (6797, 13360), (7768, 11690), (9352, 9710)]