51417540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{863}}^1$

素因数の和:1209

約数の個数: 72

約数和(自身を含む): 156619008

約数和(自身を除く): 105201468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 863, 993, 1324, 1655, 1726, 1986, 2589, 2979, 3310, 3452, 3972, 4315, 4965, 5178, 5958, 6620, 7767, 8630, 9930, 10356, 11916, 12945, 14895, 15534, 17260, 19860, 25890, 29790, 31068, 38835, 51780, 59580, 77670, 155340, 285653, 571306, 856959, 1142612, 1428265, 1713918, 2570877, 2856530, 3427836, 4284795, 5141754, 5713060, 8569590, 10283508, 12854385, 17139180, 25708770, 51417540]

約数ペア:

[(1, 51417540), (2, 25708770), (3, 17139180), (4, 12854385), (5, 10283508), (6, 8569590), (9, 5713060), (10, 5141754), (12, 4284795), (15, 3427836), (18, 2856530), (20, 2570877), (30, 1713918), (36, 1428265), (45, 1142612), (60, 856959), (90, 571306), (180, 285653), (331, 155340), (662, 77670), (863, 59580), (993, 51780), (1324, 38835), (1655, 31068), (1726, 29790), (1986, 25890), (2589, 19860), (2979, 17260), (3310, 15534), (3452, 14895), (3972, 12945), (4315, 11916), (4965, 10356), (5178, 9930), (5958, 8630), (6620, 7767)]