80721004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1051}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 174850816

約数和(自身を除く): 94129812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 211, 364, 422, 844, 1051, 1477, 2102, 2743, 2954, 4204, 5486, 5908, 7357, 10972, 13663, 14714, 19201, 27326, 29428, 38402, 54652, 76804, 95641, 191282, 221761, 382564, 443522, 887044, 1552327, 2882893, 3104654, 5765786, 6209308, 11531572, 20180251, 40360502, 80721004]

約数ペア:

[(1, 80721004), (2, 40360502), (4, 20180251), (7, 11531572), (13, 6209308), (14, 5765786), (26, 3104654), (28, 2882893), (52, 1552327), (91, 887044), (182, 443522), (211, 382564), (364, 221761), (422, 191282), (844, 95641), (1051, 76804), (1477, 54652), (2102, 38402), (2743, 29428), (2954, 27326), (4204, 19201), (5486, 14714), (5908, 13663), (7357, 10972)]