312780

素因数分解:

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

素因数の和:426

約数の個数: 48

約数和(自身を含む): 945504

約数和(自身を除く): 632724

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, 401, 780, 802, 1203, 1604, 2005, 2406, 4010, 4812, 5213, 6015, 8020, 10426, 12030, 15639, 20852, 24060, 26065, 31278, 52130, 62556, 78195, 104260, 156390, 312780]

約数ペア:

[(1, 312780), (2, 156390), (3, 104260), (4, 78195), (5, 62556), (6, 52130), (10, 31278), (12, 26065), (13, 24060), (15, 20852), (20, 15639), (26, 12030), (30, 10426), (39, 8020), (52, 6015), (60, 5213), (65, 4812), (78, 4010), (130, 2406), (156, 2005), (195, 1604), (260, 1203), (390, 802), (401, 780)]