79646840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21881}}^1$

素因数の和:21912

約数の個数: 64

約数和(自身を含む): 220570560

約数和(自身を除く): 140923720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 21881, 43762, 87524, 109405, 153167, 175048, 218810, 284453, 306334, 437620, 568906, 612668, 765835, 875240, 1137812, 1225336, 1422265, 1531670, 1991171, 2275624, 2844530, 3063340, 3982342, 5689060, 6126680, 7964684, 9955855, 11378120, 15929368, 19911710, 39823420, 79646840]

約数ペア:

[(1, 79646840), (2, 39823420), (4, 19911710), (5, 15929368), (7, 11378120), (8, 9955855), (10, 7964684), (13, 6126680), (14, 5689060), (20, 3982342), (26, 3063340), (28, 2844530), (35, 2275624), (40, 1991171), (52, 1531670), (56, 1422265), (65, 1225336), (70, 1137812), (91, 875240), (104, 765835), (130, 612668), (140, 568906), (182, 437620), (260, 306334), (280, 284453), (364, 218810), (455, 175048), (520, 153167), (728, 109405), (910, 87524), (1820, 43762), (3640, 21881)]