1581000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 128

約数和(自身を含む): 5391360

約数和(自身を除く): 3810360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 25, 30, 31, 34, 40, 50, 51, 60, 62, 68, 75, 85, 93, 100, 102, 120, 124, 125, 136, 150, 155, 170, 186, 200, 204, 248, 250, 255, 300, 310, 340, 372, 375, 408, 425, 465, 500, 510, 527, 600, 620, 680, 744, 750, 775, 850, 930, 1000, 1020, 1054, 1240, 1275, 1500, 1550, 1581, 1700, 1860, 2040, 2108, 2125, 2325, 2550, 2635, 3000, 3100, 3162, 3400, 3720, 3875, 4216, 4250, 4650, 5100, 5270, 6200, 6324, 6375, 7750, 7905, 8500, 9300, 10200, 10540, 11625, 12648, 12750, 13175, 15500, 15810, 17000, 18600, 21080, 23250, 25500, 26350, 31000, 31620, 39525, 46500, 51000, 52700, 63240, 65875, 79050, 93000, 105400, 131750, 158100, 197625, 263500, 316200, 395250, 527000, 790500, 1581000]

約数ペア:

[(1, 1581000), (2, 790500), (3, 527000), (4, 395250), (5, 316200), (6, 263500), (8, 197625), (10, 158100), (12, 131750), (15, 105400), (17, 93000), (20, 79050), (24, 65875), (25, 63240), (30, 52700), (31, 51000), (34, 46500), (40, 39525), (50, 31620), (51, 31000), (60, 26350), (62, 25500), (68, 23250), (75, 21080), (85, 18600), (93, 17000), (100, 15810), (102, 15500), (120, 13175), (124, 12750), (125, 12648), (136, 11625), (150, 10540), (155, 10200), (170, 9300), (186, 8500), (200, 7905), (204, 7750), (248, 6375), (250, 6324), (255, 6200), (300, 5270), (310, 5100), (340, 4650), (372, 4250), (375, 4216), (408, 3875), (425, 3720), (465, 3400), (500, 3162), (510, 3100), (527, 3000), (600, 2635), (620, 2550), (680, 2325), (744, 2125), (750, 2108), (775, 2040), (850, 1860), (930, 1700), (1000, 1581), (1020, 1550), (1054, 1500), (1240, 1275)]