398481440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:575

約数の個数: 192

約数和(自身を含む): 1161216000

約数和(自身を除く): 762734560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 32, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 160, 161, 184, 217, 224, 230, 248, 280, 310, 322, 368, 434, 460, 496, 499, 560, 620, 644, 713, 736, 805, 868, 920, 992, 998, 1085, 1120, 1240, 1288, 1426, 1610, 1736, 1840, 1996, 2170, 2480, 2495, 2576, 2852, 3220, 3472, 3493, 3565, 3680, 3992, 4340, 4960, 4990, 4991, 5152, 5704, 6440, 6944, 6986, 7130, 7984, 8680, 9980, 9982, 11408, 11477, 12880, 13972, 14260, 15469, 15968, 17360, 17465, 19960, 19964, 22816, 22954, 24955, 25760, 27944, 28520, 30938, 34720, 34930, 39920, 39928, 45908, 49910, 55888, 57040, 57385, 61876, 69860, 77345, 79840, 79856, 80339, 91816, 99820, 108283, 111776, 114080, 114770, 123752, 139720, 154690, 159712, 160678, 183632, 199640, 216566, 229540, 247504, 279440, 309380, 321356, 355787, 367264, 399280, 401695, 433132, 459080, 495008, 541415, 558880, 618760, 642712, 711574, 798560, 803390, 866264, 918160, 1082830, 1237520, 1285424, 1423148, 1606780, 1732528, 1778935, 1836320, 2165660, 2475040, 2490509, 2570848, 2846296, 3213560, 3465056, 3557870, 4331320, 4981018, 5692592, 6427120, 7115740, 8662640, 9962036, 11385184, 12452545, 12854240, 14231480, 17325280, 19924072, 24905090, 28462960, 39848144, 49810180, 56925920, 79696288, 99620360, 199240720, 398481440]

約数ペア:

[(1, 398481440), (2, 199240720), (4, 99620360), (5, 79696288), (7, 56925920), (8, 49810180), (10, 39848144), (14, 28462960), (16, 24905090), (20, 19924072), (23, 17325280), (28, 14231480), (31, 12854240), (32, 12452545), (35, 11385184), (40, 9962036), (46, 8662640), (56, 7115740), (62, 6427120), (70, 5692592), (80, 4981018), (92, 4331320), (112, 3557870), (115, 3465056), (124, 3213560), (140, 2846296), (155, 2570848), (160, 2490509), (161, 2475040), (184, 2165660), (217, 1836320), (224, 1778935), (230, 1732528), (248, 1606780), (280, 1423148), (310, 1285424), (322, 1237520), (368, 1082830), (434, 918160), (460, 866264), (496, 803390), (499, 798560), (560, 711574), (620, 642712), (644, 618760), (713, 558880), (736, 541415), (805, 495008), (868, 459080), (920, 433132), (992, 401695), (998, 399280), (1085, 367264), (1120, 355787), (1240, 321356), (1288, 309380), (1426, 279440), (1610, 247504), (1736, 229540), (1840, 216566), (1996, 199640), (2170, 183632), (2480, 160678), (2495, 159712), (2576, 154690), (2852, 139720), (3220, 123752), (3472, 114770), (3493, 114080), (3565, 111776), (3680, 108283), (3992, 99820), (4340, 91816), (4960, 80339), (4990, 79856), (4991, 79840), (5152, 77345), (5704, 69860), (6440, 61876), (6944, 57385), (6986, 57040), (7130, 55888), (7984, 49910), (8680, 45908), (9980, 39928), (9982, 39920), (11408, 34930), (11477, 34720), (12880, 30938), (13972, 28520), (14260, 27944), (15469, 25760), (15968, 24955), (17360, 22954), (17465, 22816), (19960, 19964)]