71746480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 181238400

約数和(自身を除く): 109491920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 298, 463, 520, 596, 745, 926, 1040, 1192, 1490, 1852, 1937, 2315, 2384, 2980, 3704, 3874, 4630, 5960, 6019, 7408, 7748, 9260, 9685, 11920, 12038, 15496, 18520, 19370, 24076, 30095, 30992, 37040, 38740, 48152, 60190, 68987, 77480, 96304, 120380, 137974, 154960, 240760, 275948, 344935, 481520, 551896, 689870, 896831, 1103792, 1379740, 1793662, 2759480, 3587324, 4484155, 5518960, 7174648, 8968310, 14349296, 17936620, 35873240, 71746480]

約数ペア:

[(1, 71746480), (2, 35873240), (4, 17936620), (5, 14349296), (8, 8968310), (10, 7174648), (13, 5518960), (16, 4484155), (20, 3587324), (26, 2759480), (40, 1793662), (52, 1379740), (65, 1103792), (80, 896831), (104, 689870), (130, 551896), (149, 481520), (208, 344935), (260, 275948), (298, 240760), (463, 154960), (520, 137974), (596, 120380), (745, 96304), (926, 77480), (1040, 68987), (1192, 60190), (1490, 48152), (1852, 38740), (1937, 37040), (2315, 30992), (2384, 30095), (2980, 24076), (3704, 19370), (3874, 18520), (4630, 15496), (5960, 12038), (6019, 11920), (7408, 9685), (7748, 9260)]