29979820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1721}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 68852448

約数和(自身を除く): 38872628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1721, 1742, 3442, 3484, 4355, 6884, 8605, 8710, 17210, 17420, 22373, 34420, 44746, 89492, 111865, 115307, 223730, 230614, 447460, 461228, 576535, 1153070, 1498991, 2306140, 2997982, 5995964, 7494955, 14989910, 29979820]

約数ペア:

[(1, 29979820), (2, 14989910), (4, 7494955), (5, 5995964), (10, 2997982), (13, 2306140), (20, 1498991), (26, 1153070), (52, 576535), (65, 461228), (67, 447460), (130, 230614), (134, 223730), (260, 115307), (268, 111865), (335, 89492), (670, 44746), (871, 34420), (1340, 22373), (1721, 17420), (1742, 17210), (3442, 8710), (3484, 8605), (4355, 6884)]