158164480

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2047

約数の個数: 80

約数和(自身を含む): 391653504

約数和(自身を除く): 233489024

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, 1993, 2480, 2560, 3968, 3986, 4960, 7936, 7972, 9920, 9965, 15872, 15944, 19840, 19930, 31888, 39680, 39860, 61783, 63776, 79360, 79720, 123566, 127552, 159440, 247132, 255104, 308915, 318880, 494264, 510208, 617830, 637760, 988528, 1020416, 1235660, 1275520, 1977056, 2471320, 2551040, 3954112, 4942640, 5102080, 7908224, 9885280, 15816448, 19770560, 31632896, 39541120, 79082240, 158164480]

約数ペア:

[(1, 158164480), (2, 79082240), (4, 39541120), (5, 31632896), (8, 19770560), (10, 15816448), (16, 9885280), (20, 7908224), (31, 5102080), (32, 4942640), (40, 3954112), (62, 2551040), (64, 2471320), (80, 1977056), (124, 1275520), (128, 1235660), (155, 1020416), (160, 988528), (248, 637760), (256, 617830), (310, 510208), (320, 494264), (496, 318880), (512, 308915), (620, 255104), (640, 247132), (992, 159440), (1240, 127552), (1280, 123566), (1984, 79720), (1993, 79360), (2480, 63776), (2560, 61783), (3968, 39860), (3986, 39680), (4960, 31888), (7936, 19930), (7972, 19840), (9920, 15944), (9965, 15872)]