20487090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 53488512

約数和(自身を除く): 33001422

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 131, 195, 262, 390, 393, 401, 655, 786, 802, 1203, 1310, 1703, 1965, 2005, 2406, 3406, 3930, 4010, 5109, 5213, 6015, 8515, 10218, 10426, 12030, 15639, 17030, 25545, 26065, 31278, 51090, 52130, 52531, 78195, 105062, 156390, 157593, 262655, 315186, 525310, 682903, 787965, 1365806, 1575930, 2048709, 3414515, 4097418, 6829030, 10243545, 20487090]

約数ペア:

[(1, 20487090), (2, 10243545), (3, 6829030), (5, 4097418), (6, 3414515), (10, 2048709), (13, 1575930), (15, 1365806), (26, 787965), (30, 682903), (39, 525310), (65, 315186), (78, 262655), (130, 157593), (131, 156390), (195, 105062), (262, 78195), (390, 52531), (393, 52130), (401, 51090), (655, 31278), (786, 26065), (802, 25545), (1203, 17030), (1310, 15639), (1703, 12030), (1965, 10426), (2005, 10218), (2406, 8515), (3406, 6015), (3930, 5213), (4010, 5109)]