812760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 2630880

約数和(自身を除く): 1818120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 521, 780, 1042, 1560, 1563, 2084, 2605, 3126, 4168, 5210, 6252, 6773, 7815, 10420, 12504, 13546, 15630, 20319, 20840, 27092, 31260, 33865, 40638, 54184, 62520, 67730, 81276, 101595, 135460, 162552, 203190, 270920, 406380, 812760]

約数ペア:

[(1, 812760), (2, 406380), (3, 270920), (4, 203190), (5, 162552), (6, 135460), (8, 101595), (10, 81276), (12, 67730), (13, 62520), (15, 54184), (20, 40638), (24, 33865), (26, 31260), (30, 27092), (39, 20840), (40, 20319), (52, 15630), (60, 13546), (65, 12504), (78, 10420), (104, 7815), (120, 6773), (130, 6252), (156, 5210), (195, 4168), (260, 3126), (312, 2605), (390, 2084), (520, 1563), (521, 1560), (780, 1042)]