81733420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{929}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 177176160

約数和(自身を除く): 95442740

約数列:

[1, 2, 4, 5, 10, 20, 53, 83, 106, 166, 212, 265, 332, 415, 530, 830, 929, 1060, 1660, 1858, 3716, 4399, 4645, 8798, 9290, 17596, 18580, 21995, 43990, 49237, 77107, 87980, 98474, 154214, 196948, 246185, 308428, 385535, 492370, 771070, 984740, 1542140, 4086671, 8173342, 16346684, 20433355, 40866710, 81733420]

約数ペア:

[(1, 81733420), (2, 40866710), (4, 20433355), (5, 16346684), (10, 8173342), (20, 4086671), (53, 1542140), (83, 984740), (106, 771070), (166, 492370), (212, 385535), (265, 308428), (332, 246185), (415, 196948), (530, 154214), (830, 98474), (929, 87980), (1060, 77107), (1660, 49237), (1858, 43990), (3716, 21995), (4399, 18580), (4645, 17596), (8798, 9290)]