15756780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20201}}^1$

素因数の和:20226

約数の個数: 48

約数和(自身を含む): 47515104

約数和(自身を除く): 31758324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20201, 40402, 60603, 80804, 101005, 121206, 202010, 242412, 262613, 303015, 404020, 525226, 606030, 787839, 1050452, 1212060, 1313065, 1575678, 2626130, 3151356, 3939195, 5252260, 7878390, 15756780]

約数ペア:

[(1, 15756780), (2, 7878390), (3, 5252260), (4, 3939195), (5, 3151356), (6, 2626130), (10, 1575678), (12, 1313065), (13, 1212060), (15, 1050452), (20, 787839), (26, 606030), (30, 525226), (39, 404020), (52, 303015), (60, 262613), (65, 242412), (78, 202010), (130, 121206), (156, 101005), (195, 80804), (260, 60603), (390, 40402), (780, 20201)]