398436800

素因数分解:

$2^6\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:359

約数の個数: 168

約数和(自身を含む): 1050706560

約数和(自身を除く): 652269760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 31, 32, 40, 50, 58, 62, 64, 80, 100, 116, 124, 145, 155, 160, 200, 232, 248, 277, 290, 310, 320, 400, 464, 496, 554, 580, 620, 725, 775, 800, 899, 928, 992, 1108, 1160, 1240, 1385, 1450, 1550, 1600, 1798, 1856, 1984, 2216, 2320, 2480, 2770, 2900, 3100, 3596, 4432, 4495, 4640, 4960, 5540, 5800, 6200, 6925, 7192, 8033, 8587, 8864, 8990, 9280, 9920, 11080, 11600, 12400, 13850, 14384, 16066, 17174, 17728, 17980, 22160, 22475, 23200, 24800, 27700, 28768, 32132, 34348, 35960, 40165, 42935, 44320, 44950, 46400, 49600, 55400, 57536, 64264, 68696, 71920, 80330, 85870, 88640, 89900, 110800, 128528, 137392, 143840, 160660, 171740, 179800, 200825, 214675, 221600, 249023, 257056, 274784, 287680, 321320, 343480, 359600, 401650, 429350, 443200, 498046, 514112, 549568, 642640, 686960, 719200, 803300, 858700, 996092, 1245115, 1285280, 1373920, 1438400, 1606600, 1717400, 1992184, 2490230, 2570560, 2747840, 3213200, 3434800, 3984368, 4980460, 6225575, 6426400, 6869600, 7968736, 9960920, 12451150, 12852800, 13739200, 15937472, 19921840, 24902300, 39843680, 49804600, 79687360, 99609200, 199218400, 398436800]

約数ペア:

[(1, 398436800), (2, 199218400), (4, 99609200), (5, 79687360), (8, 49804600), (10, 39843680), (16, 24902300), (20, 19921840), (25, 15937472), (29, 13739200), (31, 12852800), (32, 12451150), (40, 9960920), (50, 7968736), (58, 6869600), (62, 6426400), (64, 6225575), (80, 4980460), (100, 3984368), (116, 3434800), (124, 3213200), (145, 2747840), (155, 2570560), (160, 2490230), (200, 1992184), (232, 1717400), (248, 1606600), (277, 1438400), (290, 1373920), (310, 1285280), (320, 1245115), (400, 996092), (464, 858700), (496, 803300), (554, 719200), (580, 686960), (620, 642640), (725, 549568), (775, 514112), (800, 498046), (899, 443200), (928, 429350), (992, 401650), (1108, 359600), (1160, 343480), (1240, 321320), (1385, 287680), (1450, 274784), (1550, 257056), (1600, 249023), (1798, 221600), (1856, 214675), (1984, 200825), (2216, 179800), (2320, 171740), (2480, 160660), (2770, 143840), (2900, 137392), (3100, 128528), (3596, 110800), (4432, 89900), (4495, 88640), (4640, 85870), (4960, 80330), (5540, 71920), (5800, 68696), (6200, 64264), (6925, 57536), (7192, 55400), (8033, 49600), (8587, 46400), (8864, 44950), (8990, 44320), (9280, 42935), (9920, 40165), (11080, 35960), (11600, 34348), (12400, 32132), (13850, 28768), (14384, 27700), (16066, 24800), (17174, 23200), (17728, 22475), (17980, 22160)]