19721820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8017}}^1$

素因数の和:8070

約数の個数: 48

約数和(自身を含む): 56575008

約数和(自身を除く): 36853188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8017, 16034, 24051, 32068, 40085, 48102, 80170, 96204, 120255, 160340, 240510, 328697, 481020, 657394, 986091, 1314788, 1643485, 1972182, 3286970, 3944364, 4930455, 6573940, 9860910, 19721820]

約数ペア:

[(1, 19721820), (2, 9860910), (3, 6573940), (4, 4930455), (5, 3944364), (6, 3286970), (10, 1972182), (12, 1643485), (15, 1314788), (20, 986091), (30, 657394), (41, 481020), (60, 328697), (82, 240510), (123, 160340), (164, 120255), (205, 96204), (246, 80170), (410, 48102), (492, 40085), (615, 32068), (820, 24051), (1230, 16034), (2460, 8017)]