890313340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31327}}^1$

素因数の和:31379

約数の個数: 72

約数和(自身を含む): 2249976960

約数和(自身を除く): 1359663620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7105, 14210, 28420, 31327, 62654, 125308, 156635, 219289, 313270, 438578, 626540, 877156, 908483, 1096445, 1535023, 1816966, 2192890, 3070046, 3633932, 4385780, 4542415, 6140092, 6359381, 7675115, 9084830, 12718762, 15350230, 18169660, 25437524, 30700460, 31796905, 44515667, 63593810, 89031334, 127187620, 178062668, 222578335, 445156670, 890313340]

約数ペア:

[(1, 890313340), (2, 445156670), (4, 222578335), (5, 178062668), (7, 127187620), (10, 89031334), (14, 63593810), (20, 44515667), (28, 31796905), (29, 30700460), (35, 25437524), (49, 18169660), (58, 15350230), (70, 12718762), (98, 9084830), (116, 7675115), (140, 6359381), (145, 6140092), (196, 4542415), (203, 4385780), (245, 3633932), (290, 3070046), (406, 2192890), (490, 1816966), (580, 1535023), (812, 1096445), (980, 908483), (1015, 877156), (1421, 626540), (2030, 438578), (2842, 313270), (4060, 219289), (5684, 156635), (7105, 125308), (14210, 62654), (28420, 31327)]