139973180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1070

約数の個数: 48

約数和(自身を含む): 302914080

約数和(自身を除く): 162940900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 211, 410, 422, 809, 820, 844, 1055, 1618, 2110, 3236, 4045, 4220, 8090, 8651, 16180, 17302, 33169, 34604, 43255, 66338, 86510, 132676, 165845, 170699, 173020, 331690, 341398, 663380, 682796, 853495, 1706990, 3413980, 6998659, 13997318, 27994636, 34993295, 69986590, 139973180]

約数ペア:

[(1, 139973180), (2, 69986590), (4, 34993295), (5, 27994636), (10, 13997318), (20, 6998659), (41, 3413980), (82, 1706990), (164, 853495), (205, 682796), (211, 663380), (410, 341398), (422, 331690), (809, 173020), (820, 170699), (844, 165845), (1055, 132676), (1618, 86510), (2110, 66338), (3236, 43255), (4045, 34604), (4220, 33169), (8090, 17302), (8651, 16180)]