781950

素因数分解:

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

素因数の和:429

約数の個数: 48

約数和(自身を含む): 2093616

約数和(自身を除く): 1311666

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 401, 650, 802, 975, 1203, 1950, 2005, 2406, 4010, 5213, 6015, 10025, 10426, 12030, 15639, 20050, 26065, 30075, 31278, 52130, 60150, 78195, 130325, 156390, 260650, 390975, 781950]

約数ペア:

[(1, 781950), (2, 390975), (3, 260650), (5, 156390), (6, 130325), (10, 78195), (13, 60150), (15, 52130), (25, 31278), (26, 30075), (30, 26065), (39, 20050), (50, 15639), (65, 12030), (75, 10426), (78, 10025), (130, 6015), (150, 5213), (195, 4010), (325, 2406), (390, 2005), (401, 1950), (650, 1203), (802, 975)]