978900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 3062304

約数和(自身を除く): 2083404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 251, 260, 300, 325, 390, 502, 650, 753, 780, 975, 1004, 1255, 1300, 1506, 1950, 2510, 3012, 3263, 3765, 3900, 5020, 6275, 6526, 7530, 9789, 12550, 13052, 15060, 16315, 18825, 19578, 25100, 32630, 37650, 39156, 48945, 65260, 75300, 81575, 97890, 163150, 195780, 244725, 326300, 489450, 978900]

約数ペア:

[(1, 978900), (2, 489450), (3, 326300), (4, 244725), (5, 195780), (6, 163150), (10, 97890), (12, 81575), (13, 75300), (15, 65260), (20, 48945), (25, 39156), (26, 37650), (30, 32630), (39, 25100), (50, 19578), (52, 18825), (60, 16315), (65, 15060), (75, 13052), (78, 12550), (100, 9789), (130, 7530), (150, 6526), (156, 6275), (195, 5020), (251, 3900), (260, 3765), (300, 3263), (325, 3012), (390, 2510), (502, 1950), (650, 1506), (753, 1300), (780, 1255), (975, 1004)]