20680188

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 50663424

約数和(自身を除く): 29983236

約数列:

[1, 2, 3, 4, 6, 12, 37, 47, 74, 94, 111, 141, 148, 188, 222, 282, 444, 564, 991, 1739, 1982, 2973, 3478, 3964, 5217, 5946, 6956, 10434, 11892, 20868, 36667, 46577, 73334, 93154, 110001, 139731, 146668, 186308, 220002, 279462, 440004, 558924, 1723349, 3446698, 5170047, 6893396, 10340094, 20680188]

約数ペア:

[(1, 20680188), (2, 10340094), (3, 6893396), (4, 5170047), (6, 3446698), (12, 1723349), (37, 558924), (47, 440004), (74, 279462), (94, 220002), (111, 186308), (141, 146668), (148, 139731), (188, 110001), (222, 93154), (282, 73334), (444, 46577), (564, 36667), (991, 20868), (1739, 11892), (1982, 10434), (2973, 6956), (3478, 5946), (3964, 5217)]