28904980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1039}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 66044160

約数和(自身を除く): 37139180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1039, 1070, 1391, 2078, 2140, 2782, 4156, 5195, 5564, 6955, 10390, 13507, 13910, 20780, 27014, 27820, 54028, 67535, 111173, 135070, 222346, 270140, 444692, 555865, 1111730, 1445249, 2223460, 2890498, 5780996, 7226245, 14452490, 28904980]

約数ペア:

[(1, 28904980), (2, 14452490), (4, 7226245), (5, 5780996), (10, 2890498), (13, 2223460), (20, 1445249), (26, 1111730), (52, 555865), (65, 444692), (107, 270140), (130, 222346), (214, 135070), (260, 111173), (428, 67535), (535, 54028), (1039, 27820), (1070, 27014), (1391, 20780), (2078, 13910), (2140, 13507), (2782, 10390), (4156, 6955), (5195, 5564)]