19629740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{733}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 44885568

約数和(自身を除く): 25255828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 733, 1030, 1339, 1466, 2060, 2678, 2932, 3665, 5356, 6695, 7330, 9529, 13390, 14660, 19058, 26780, 38116, 47645, 75499, 95290, 150998, 190580, 301996, 377495, 754990, 981487, 1509980, 1962974, 3925948, 4907435, 9814870, 19629740]

約数ペア:

[(1, 19629740), (2, 9814870), (4, 4907435), (5, 3925948), (10, 1962974), (13, 1509980), (20, 981487), (26, 754990), (52, 377495), (65, 301996), (103, 190580), (130, 150998), (206, 95290), (260, 75499), (412, 47645), (515, 38116), (733, 26780), (1030, 19058), (1339, 14660), (1466, 13390), (2060, 9529), (2678, 7330), (2932, 6695), (3665, 5356)]