390252800

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:345

約数の個数: 216

約数和(自身を含む): 1143593472

約数和(自身を除く): 753340672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 64, 70, 80, 100, 112, 124, 128, 140, 155, 160, 175, 200, 217, 224, 248, 256, 280, 281, 310, 320, 350, 400, 434, 448, 496, 560, 562, 620, 640, 700, 775, 800, 868, 896, 992, 1085, 1120, 1124, 1240, 1280, 1400, 1405, 1550, 1600, 1736, 1792, 1967, 1984, 2170, 2240, 2248, 2480, 2800, 2810, 3100, 3200, 3472, 3934, 3968, 4340, 4480, 4496, 4960, 5425, 5600, 5620, 6200, 6400, 6944, 7025, 7868, 7936, 8680, 8711, 8960, 8992, 9835, 9920, 10850, 11200, 11240, 12400, 13888, 14050, 15736, 17360, 17422, 17984, 19670, 19840, 21700, 22400, 22480, 24800, 27776, 28100, 31472, 34720, 34844, 35968, 39340, 39680, 43400, 43555, 44800, 44960, 49175, 49600, 55552, 56200, 60977, 62944, 69440, 69688, 71936, 78680, 86800, 87110, 89920, 98350, 99200, 112400, 121954, 125888, 138880, 139376, 157360, 173600, 174220, 179840, 196700, 198400, 217775, 224800, 243908, 251776, 277760, 278752, 304885, 314720, 347200, 348440, 359680, 393400, 435550, 449600, 487816, 503552, 557504, 609770, 629440, 694400, 696880, 786800, 871100, 899200, 975632, 1115008, 1219540, 1258880, 1388800, 1393760, 1524425, 1573600, 1742200, 1798400, 1951264, 2230016, 2439080, 2517760, 2787520, 3048850, 3147200, 3484400, 3902528, 4878160, 5575040, 6097700, 6294400, 6968800, 7805056, 9756320, 11150080, 12195400, 12588800, 13937600, 15610112, 19512640, 24390800, 27875200, 39025280, 48781600, 55750400, 78050560, 97563200, 195126400, 390252800]

約数ペア:

[(1, 390252800), (2, 195126400), (4, 97563200), (5, 78050560), (7, 55750400), (8, 48781600), (10, 39025280), (14, 27875200), (16, 24390800), (20, 19512640), (25, 15610112), (28, 13937600), (31, 12588800), (32, 12195400), (35, 11150080), (40, 9756320), (50, 7805056), (56, 6968800), (62, 6294400), (64, 6097700), (70, 5575040), (80, 4878160), (100, 3902528), (112, 3484400), (124, 3147200), (128, 3048850), (140, 2787520), (155, 2517760), (160, 2439080), (175, 2230016), (200, 1951264), (217, 1798400), (224, 1742200), (248, 1573600), (256, 1524425), (280, 1393760), (281, 1388800), (310, 1258880), (320, 1219540), (350, 1115008), (400, 975632), (434, 899200), (448, 871100), (496, 786800), (560, 696880), (562, 694400), (620, 629440), (640, 609770), (700, 557504), (775, 503552), (800, 487816), (868, 449600), (896, 435550), (992, 393400), (1085, 359680), (1120, 348440), (1124, 347200), (1240, 314720), (1280, 304885), (1400, 278752), (1405, 277760), (1550, 251776), (1600, 243908), (1736, 224800), (1792, 217775), (1967, 198400), (1984, 196700), (2170, 179840), (2240, 174220), (2248, 173600), (2480, 157360), (2800, 139376), (2810, 138880), (3100, 125888), (3200, 121954), (3472, 112400), (3934, 99200), (3968, 98350), (4340, 89920), (4480, 87110), (4496, 86800), (4960, 78680), (5425, 71936), (5600, 69688), (5620, 69440), (6200, 62944), (6400, 60977), (6944, 56200), (7025, 55552), (7868, 49600), (7936, 49175), (8680, 44960), (8711, 44800), (8960, 43555), (8992, 43400), (9835, 39680), (9920, 39340), (10850, 35968), (11200, 34844), (11240, 34720), (12400, 31472), (13888, 28100), (14050, 27776), (15736, 24800), (17360, 22480), (17422, 22400), (17984, 21700), (19670, 19840)]