890489920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{9629}}^1$

素因数の和:9680

約数の個数: 84

約数和(自身を含む): 2252784420

約数和(自身を除く): 1362294500

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 289, 320, 340, 544, 578, 680, 1088, 1156, 1360, 1445, 2312, 2720, 2890, 4624, 5440, 5780, 9248, 9629, 11560, 18496, 19258, 23120, 38516, 46240, 48145, 77032, 92480, 96290, 154064, 163693, 192580, 308128, 327386, 385160, 616256, 654772, 770320, 818465, 1309544, 1540640, 1636930, 2619088, 2782781, 3081280, 3273860, 5238176, 5565562, 6547720, 10476352, 11131124, 13095440, 13913905, 22262248, 26190880, 27827810, 44524496, 52381760, 55655620, 89048992, 111311240, 178097984, 222622480, 445244960, 890489920]

約数ペア:

[(1, 890489920), (2, 445244960), (4, 222622480), (5, 178097984), (8, 111311240), (10, 89048992), (16, 55655620), (17, 52381760), (20, 44524496), (32, 27827810), (34, 26190880), (40, 22262248), (64, 13913905), (68, 13095440), (80, 11131124), (85, 10476352), (136, 6547720), (160, 5565562), (170, 5238176), (272, 3273860), (289, 3081280), (320, 2782781), (340, 2619088), (544, 1636930), (578, 1540640), (680, 1309544), (1088, 818465), (1156, 770320), (1360, 654772), (1445, 616256), (2312, 385160), (2720, 327386), (2890, 308128), (4624, 192580), (5440, 163693), (5780, 154064), (9248, 96290), (9629, 92480), (11560, 77032), (18496, 48145), (19258, 46240), (23120, 38516)]