20147420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 43817760

約数和(自身を除く): 23670340

約数列:

[1, 2, 4, 5, 10, 20, 53, 83, 106, 166, 212, 229, 265, 332, 415, 458, 530, 830, 916, 1060, 1145, 1660, 2290, 4399, 4580, 8798, 12137, 17596, 19007, 21995, 24274, 38014, 43990, 48548, 60685, 76028, 87980, 95035, 121370, 190070, 242740, 380140, 1007371, 2014742, 4029484, 5036855, 10073710, 20147420]

約数ペア:

[(1, 20147420), (2, 10073710), (4, 5036855), (5, 4029484), (10, 2014742), (20, 1007371), (53, 380140), (83, 242740), (106, 190070), (166, 121370), (212, 95035), (229, 87980), (265, 76028), (332, 60685), (415, 48548), (458, 43990), (530, 38014), (830, 24274), (916, 21995), (1060, 19007), (1145, 17596), (1660, 12137), (2290, 8798), (4399, 4580)]