1901228180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1\times {\mathrm{2153}}^1$

素因数の和:2888

約数の個数: 48

約数和(自身を含む): 4060203840

約数和(自身を除く): 2158975660

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 659, 670, 1318, 1340, 2153, 2636, 3295, 4306, 6590, 8612, 10765, 13180, 21530, 43060, 44153, 88306, 144251, 176612, 220765, 288502, 441530, 577004, 721255, 883060, 1418827, 1442510, 2837654, 2885020, 5675308, 7094135, 14188270, 28376540, 95061409, 190122818, 380245636, 475307045, 950614090, 1901228180]

約数ペア:

[(1, 1901228180), (2, 950614090), (4, 475307045), (5, 380245636), (10, 190122818), (20, 95061409), (67, 28376540), (134, 14188270), (268, 7094135), (335, 5675308), (659, 2885020), (670, 2837654), (1318, 1442510), (1340, 1418827), (2153, 883060), (2636, 721255), (3295, 577004), (4306, 441530), (6590, 288502), (8612, 220765), (10765, 176612), (13180, 144251), (21530, 88306), (43060, 44153)]