396244480

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5047

約数の個数: 80

約数和(自身を含む): 980901504

約数和(自身を除く): 584657024

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, 4993, 7936, 9920, 9986, 15872, 19840, 19972, 24965, 39680, 39944, 49930, 79360, 79888, 99860, 154783, 159776, 199720, 309566, 319552, 399440, 619132, 639104, 773915, 798880, 1238264, 1278208, 1547830, 1597760, 2476528, 2556416, 3095660, 3195520, 4953056, 6191320, 6391040, 9906112, 12382640, 12782080, 19812224, 24765280, 39624448, 49530560, 79248896, 99061120, 198122240, 396244480]

約数ペア:

[(1, 396244480), (2, 198122240), (4, 99061120), (5, 79248896), (8, 49530560), (10, 39624448), (16, 24765280), (20, 19812224), (31, 12782080), (32, 12382640), (40, 9906112), (62, 6391040), (64, 6191320), (80, 4953056), (124, 3195520), (128, 3095660), (155, 2556416), (160, 2476528), (248, 1597760), (256, 1547830), (310, 1278208), (320, 1238264), (496, 798880), (512, 773915), (620, 639104), (640, 619132), (992, 399440), (1240, 319552), (1280, 309566), (1984, 199720), (2480, 159776), (2560, 154783), (3968, 99860), (4960, 79888), (4993, 79360), (7936, 49930), (9920, 39944), (9986, 39680), (15872, 24965), (19840, 19972)]