1331246640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{178931}}^1$

素因数の和:178978

約数の個数: 80

約数和(自身を含む): 4260013056

約数和(自身を除く): 2928766416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 178931, 357862, 536793, 715724, 894655, 1073586, 1431448, 1789310, 2147172, 2683965, 2862896, 3578620, 4294344, 5367930, 5546861, 7157240, 8588688, 10735860, 11093722, 14314480, 16640583, 21471720, 22187444, 27734305, 33281166, 42943440, 44374888, 55468610, 66562332, 83202915, 88749776, 110937220, 133124664, 166405830, 221874440, 266249328, 332811660, 443748880, 665623320, 1331246640]

約数ペア:

[(1, 1331246640), (2, 665623320), (3, 443748880), (4, 332811660), (5, 266249328), (6, 221874440), (8, 166405830), (10, 133124664), (12, 110937220), (15, 88749776), (16, 83202915), (20, 66562332), (24, 55468610), (30, 44374888), (31, 42943440), (40, 33281166), (48, 27734305), (60, 22187444), (62, 21471720), (80, 16640583), (93, 14314480), (120, 11093722), (124, 10735860), (155, 8588688), (186, 7157240), (240, 5546861), (248, 5367930), (310, 4294344), (372, 3578620), (465, 2862896), (496, 2683965), (620, 2147172), (744, 1789310), (930, 1431448), (1240, 1073586), (1488, 894655), (1860, 715724), (2480, 536793), (3720, 357862), (7440, 178931)]