123345280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6217}}^1$

素因数の和:6267

約数の個数: 64

約数和(自身を含む): 304433280

約数和(自身を除く): 181088000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6217, 9920, 12434, 19840, 24868, 31085, 49736, 62170, 99472, 124340, 192727, 198944, 248680, 385454, 397888, 497360, 770908, 795776, 963635, 994720, 1541816, 1927270, 1989440, 3083632, 3854540, 3978880, 6167264, 7709080, 12334528, 15418160, 24669056, 30836320, 61672640, 123345280]

約数ペア:

[(1, 123345280), (2, 61672640), (4, 30836320), (5, 24669056), (8, 15418160), (10, 12334528), (16, 7709080), (20, 6167264), (31, 3978880), (32, 3854540), (40, 3083632), (62, 1989440), (64, 1927270), (80, 1541816), (124, 994720), (128, 963635), (155, 795776), (160, 770908), (248, 497360), (310, 397888), (320, 385454), (496, 248680), (620, 198944), (640, 192727), (992, 124340), (1240, 99472), (1984, 62170), (2480, 49736), (3968, 31085), (4960, 24868), (6217, 19840), (9920, 12434)]