149099780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1\times {\mathrm{521}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 322282800

約数和(自身を除く): 173183020

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 349, 410, 521, 698, 820, 1042, 1396, 1745, 2084, 2605, 3490, 5210, 6980, 10420, 14309, 21361, 28618, 42722, 57236, 71545, 85444, 106805, 143090, 181829, 213610, 286180, 363658, 427220, 727316, 909145, 1818290, 3636580, 7454989, 14909978, 29819956, 37274945, 74549890, 149099780]

約数ペア:

[(1, 149099780), (2, 74549890), (4, 37274945), (5, 29819956), (10, 14909978), (20, 7454989), (41, 3636580), (82, 1818290), (164, 909145), (205, 727316), (349, 427220), (410, 363658), (521, 286180), (698, 213610), (820, 181829), (1042, 143090), (1396, 106805), (1745, 85444), (2084, 71545), (2605, 57236), (3490, 42722), (5210, 28618), (6980, 21361), (10420, 14309)]