313316920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:605

約数の個数: 128

約数和(自身を含む): 841674240

約数和(自身を除く): 528357320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 53, 56, 70, 86, 106, 140, 172, 212, 215, 265, 280, 301, 344, 371, 424, 430, 491, 530, 602, 742, 860, 982, 1060, 1204, 1484, 1505, 1720, 1855, 1964, 2120, 2279, 2408, 2455, 2968, 3010, 3437, 3710, 3928, 4558, 4910, 6020, 6874, 7420, 9116, 9820, 11395, 12040, 13748, 14840, 15953, 17185, 18232, 19640, 21113, 22790, 26023, 27496, 31906, 34370, 42226, 45580, 52046, 63812, 68740, 79765, 84452, 91160, 104092, 105565, 127624, 130115, 137480, 147791, 159530, 168904, 182161, 208184, 211130, 260230, 295582, 319060, 364322, 422260, 520460, 591164, 638120, 728644, 738955, 844520, 910805, 1040920, 1118989, 1182328, 1457288, 1477910, 1821610, 2237978, 2955820, 3643220, 4475956, 5594945, 5911640, 7286440, 7832923, 8951912, 11189890, 15665846, 22379780, 31331692, 39164615, 44759560, 62663384, 78329230, 156658460, 313316920]

約数ペア:

[(1, 313316920), (2, 156658460), (4, 78329230), (5, 62663384), (7, 44759560), (8, 39164615), (10, 31331692), (14, 22379780), (20, 15665846), (28, 11189890), (35, 8951912), (40, 7832923), (43, 7286440), (53, 5911640), (56, 5594945), (70, 4475956), (86, 3643220), (106, 2955820), (140, 2237978), (172, 1821610), (212, 1477910), (215, 1457288), (265, 1182328), (280, 1118989), (301, 1040920), (344, 910805), (371, 844520), (424, 738955), (430, 728644), (491, 638120), (530, 591164), (602, 520460), (742, 422260), (860, 364322), (982, 319060), (1060, 295582), (1204, 260230), (1484, 211130), (1505, 208184), (1720, 182161), (1855, 168904), (1964, 159530), (2120, 147791), (2279, 137480), (2408, 130115), (2455, 127624), (2968, 105565), (3010, 104092), (3437, 91160), (3710, 84452), (3928, 79765), (4558, 68740), (4910, 63812), (6020, 52046), (6874, 45580), (7420, 42226), (9116, 34370), (9820, 31906), (11395, 27496), (12040, 26023), (13748, 22790), (14840, 21113), (15953, 19640), (17185, 18232)]