138319360

素因数分解:

$2^9\times 5^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:855

約数の個数: 80

約数和(自身を含む): 336755232

約数和(自身を除く): 198435872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 512, 568, 640, 710, 761, 1136, 1280, 1420, 1522, 2272, 2560, 2840, 3044, 3805, 4544, 5680, 6088, 7610, 9088, 11360, 12176, 15220, 18176, 22720, 24352, 30440, 36352, 45440, 48704, 54031, 60880, 90880, 97408, 108062, 121760, 181760, 194816, 216124, 243520, 270155, 389632, 432248, 487040, 540310, 864496, 974080, 1080620, 1728992, 1948160, 2161240, 3457984, 4322480, 6915968, 8644960, 13831936, 17289920, 27663872, 34579840, 69159680, 138319360]

約数ペア:

[(1, 138319360), (2, 69159680), (4, 34579840), (5, 27663872), (8, 17289920), (10, 13831936), (16, 8644960), (20, 6915968), (32, 4322480), (40, 3457984), (64, 2161240), (71, 1948160), (80, 1728992), (128, 1080620), (142, 974080), (160, 864496), (256, 540310), (284, 487040), (320, 432248), (355, 389632), (512, 270155), (568, 243520), (640, 216124), (710, 194816), (761, 181760), (1136, 121760), (1280, 108062), (1420, 97408), (1522, 90880), (2272, 60880), (2560, 54031), (2840, 48704), (3044, 45440), (3805, 36352), (4544, 30440), (5680, 24352), (6088, 22720), (7610, 18176), (9088, 15220), (11360, 12176)]