20122648

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 47013120

約数和(自身を除く): 26890472

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 131, 182, 211, 262, 364, 422, 524, 728, 844, 917, 1048, 1477, 1688, 1703, 1834, 2743, 2954, 3406, 3668, 5486, 5908, 6812, 7336, 10972, 11816, 11921, 13624, 19201, 21944, 23842, 27641, 38402, 47684, 55282, 76804, 95368, 110564, 153608, 193487, 221128, 359333, 386974, 718666, 773948, 1437332, 1547896, 2515331, 2874664, 5030662, 10061324, 20122648]

約数ペア:

[(1, 20122648), (2, 10061324), (4, 5030662), (7, 2874664), (8, 2515331), (13, 1547896), (14, 1437332), (26, 773948), (28, 718666), (52, 386974), (56, 359333), (91, 221128), (104, 193487), (131, 153608), (182, 110564), (211, 95368), (262, 76804), (364, 55282), (422, 47684), (524, 38402), (728, 27641), (844, 23842), (917, 21944), (1048, 19201), (1477, 13624), (1688, 11921), (1703, 11816), (1834, 10972), (2743, 7336), (2954, 6812), (3406, 5908), (3668, 5486)]