78511940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4507}}^1$

素因数の和:4596

約数の個数: 48

約数和(自身を含む): 180247872

約数和(自身を除く): 101735932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 4507, 8710, 9014, 17420, 18028, 22535, 45070, 58591, 90140, 117182, 234364, 292955, 301969, 585910, 603938, 1171820, 1207876, 1509845, 3019690, 3925597, 6039380, 7851194, 15702388, 19627985, 39255970, 78511940]

約数ペア:

[(1, 78511940), (2, 39255970), (4, 19627985), (5, 15702388), (10, 7851194), (13, 6039380), (20, 3925597), (26, 3019690), (52, 1509845), (65, 1207876), (67, 1171820), (130, 603938), (134, 585910), (260, 301969), (268, 292955), (335, 234364), (670, 117182), (871, 90140), (1340, 58591), (1742, 45070), (3484, 22535), (4355, 18028), (4507, 17420), (8710, 9014)]