1280100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 3937248

約数和(自身を除く): 2657148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 68, 75, 85, 100, 102, 150, 170, 204, 251, 255, 300, 340, 425, 502, 510, 753, 850, 1004, 1020, 1255, 1275, 1506, 1700, 2510, 2550, 3012, 3765, 4267, 5020, 5100, 6275, 7530, 8534, 12550, 12801, 15060, 17068, 18825, 21335, 25100, 25602, 37650, 42670, 51204, 64005, 75300, 85340, 106675, 128010, 213350, 256020, 320025, 426700, 640050, 1280100]

約数ペア:

[(1, 1280100), (2, 640050), (3, 426700), (4, 320025), (5, 256020), (6, 213350), (10, 128010), (12, 106675), (15, 85340), (17, 75300), (20, 64005), (25, 51204), (30, 42670), (34, 37650), (50, 25602), (51, 25100), (60, 21335), (68, 18825), (75, 17068), (85, 15060), (100, 12801), (102, 12550), (150, 8534), (170, 7530), (204, 6275), (251, 5100), (255, 5020), (300, 4267), (340, 3765), (425, 3012), (502, 2550), (510, 2510), (753, 1700), (850, 1506), (1004, 1275), (1020, 1255)]