856912880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{21727}}^1$

素因数の和:21786

約数の個数: 80

約数和(自身を含む): 2182360320

約数和(自身を除く): 1325447440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 986, 1160, 1360, 1972, 2320, 2465, 3944, 4930, 7888, 9860, 19720, 21727, 39440, 43454, 86908, 108635, 173816, 217270, 347632, 369359, 434540, 630083, 738718, 869080, 1260166, 1477436, 1738160, 1846795, 2520332, 2954872, 3150415, 3693590, 5040664, 5909744, 6300830, 7387180, 10081328, 10711411, 12601660, 14774360, 21422822, 25203320, 29548720, 42845644, 50406640, 53557055, 85691288, 107114110, 171382576, 214228220, 428456440, 856912880]

約数ペア:

[(1, 856912880), (2, 428456440), (4, 214228220), (5, 171382576), (8, 107114110), (10, 85691288), (16, 53557055), (17, 50406640), (20, 42845644), (29, 29548720), (34, 25203320), (40, 21422822), (58, 14774360), (68, 12601660), (80, 10711411), (85, 10081328), (116, 7387180), (136, 6300830), (145, 5909744), (170, 5040664), (232, 3693590), (272, 3150415), (290, 2954872), (340, 2520332), (464, 1846795), (493, 1738160), (580, 1477436), (680, 1260166), (986, 869080), (1160, 738718), (1360, 630083), (1972, 434540), (2320, 369359), (2465, 347632), (3944, 217270), (4930, 173816), (7888, 108635), (9860, 86908), (19720, 43454), (21727, 39440)]