78427820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1193}}^1$

素因数の和:1394

約数の個数: 48

約数和(自身を含む): 174515040

約数和(自身を除く): 96087220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 346, 380, 692, 865, 1193, 1730, 2386, 3287, 3460, 4772, 5965, 6574, 11930, 13148, 16435, 22667, 23860, 32870, 45334, 65740, 90668, 113335, 206389, 226670, 412778, 453340, 825556, 1031945, 2063890, 3921391, 4127780, 7842782, 15685564, 19606955, 39213910, 78427820]

約数ペア:

[(1, 78427820), (2, 39213910), (4, 19606955), (5, 15685564), (10, 7842782), (19, 4127780), (20, 3921391), (38, 2063890), (76, 1031945), (95, 825556), (173, 453340), (190, 412778), (346, 226670), (380, 206389), (692, 113335), (865, 90668), (1193, 65740), (1730, 45334), (2386, 32870), (3287, 23860), (3460, 22667), (4772, 16435), (5965, 13148), (6574, 11930)]