138225280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6967}}^1$

素因数の和:7017

約数の個数: 64

約数和(自身を含む): 341153280

約数和(自身を除く): 202928000

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, 6967, 9920, 13934, 19840, 27868, 34835, 55736, 69670, 111472, 139340, 215977, 222944, 278680, 431954, 445888, 557360, 863908, 891776, 1079885, 1114720, 1727816, 2159770, 2229440, 3455632, 4319540, 4458880, 6911264, 8639080, 13822528, 17278160, 27645056, 34556320, 69112640, 138225280]

約数ペア:

[(1, 138225280), (2, 69112640), (4, 34556320), (5, 27645056), (8, 17278160), (10, 13822528), (16, 8639080), (20, 6911264), (31, 4458880), (32, 4319540), (40, 3455632), (62, 2229440), (64, 2159770), (80, 1727816), (124, 1114720), (128, 1079885), (155, 891776), (160, 863908), (248, 557360), (310, 445888), (320, 431954), (496, 278680), (620, 222944), (640, 215977), (992, 139340), (1240, 111472), (1984, 69670), (2480, 55736), (3968, 34835), (4960, 27868), (6967, 19840), (9920, 13934)]