98777540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 211559040

約数和(自身を除く): 112781500

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 211, 263, 356, 422, 445, 526, 844, 890, 1052, 1055, 1315, 1780, 2110, 2630, 4220, 5260, 18779, 23407, 37558, 46814, 55493, 75116, 93628, 93895, 110986, 117035, 187790, 221972, 234070, 277465, 375580, 468140, 554930, 1109860, 4938877, 9877754, 19755508, 24694385, 49388770, 98777540]

約数ペア:

[(1, 98777540), (2, 49388770), (4, 24694385), (5, 19755508), (10, 9877754), (20, 4938877), (89, 1109860), (178, 554930), (211, 468140), (263, 375580), (356, 277465), (422, 234070), (445, 221972), (526, 187790), (844, 117035), (890, 110986), (1052, 93895), (1055, 93628), (1315, 75116), (1780, 55493), (2110, 46814), (2630, 37558), (4220, 23407), (5260, 18779)]