1408560640

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17749}}^1$

素因数の和:17803

約数の個数: 80

約数和(自身を含む): 3486384000

約数和(自身を除く): 2077823360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 17749, 19840, 35498, 39680, 70996, 79360, 88745, 141992, 177490, 283984, 354980, 550219, 567968, 709960, 1100438, 1135936, 1419920, 2200876, 2271872, 2751095, 2839840, 4401752, 4543744, 5502190, 5679680, 8803504, 9087488, 11004380, 11359360, 17607008, 22008760, 22718720, 35214016, 44017520, 45437440, 70428032, 88035040, 140856064, 176070080, 281712128, 352140160, 704280320, 1408560640]

約数ペア:

[(1, 1408560640), (2, 704280320), (4, 352140160), (5, 281712128), (8, 176070080), (10, 140856064), (16, 88035040), (20, 70428032), (31, 45437440), (32, 44017520), (40, 35214016), (62, 22718720), (64, 22008760), (80, 17607008), (124, 11359360), (128, 11004380), (155, 9087488), (160, 8803504), (248, 5679680), (256, 5502190), (310, 4543744), (320, 4401752), (496, 2839840), (512, 2751095), (620, 2271872), (640, 2200876), (992, 1419920), (1240, 1135936), (1280, 1100438), (1984, 709960), (2480, 567968), (2560, 550219), (3968, 354980), (4960, 283984), (7936, 177490), (9920, 141992), (15872, 88745), (17749, 79360), (19840, 70996), (35498, 39680)]