212855480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 528768000

約数和(自身を除く): 315912520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 59, 76, 94, 95, 101, 118, 152, 188, 190, 202, 235, 236, 295, 376, 380, 404, 470, 472, 505, 590, 760, 808, 893, 940, 1010, 1121, 1180, 1786, 1880, 1919, 2020, 2242, 2360, 2773, 3572, 3838, 4040, 4465, 4484, 4747, 5546, 5605, 5959, 7144, 7676, 8930, 8968, 9494, 9595, 11092, 11210, 11918, 13865, 15352, 17860, 18988, 19190, 22184, 22420, 23735, 23836, 27730, 29795, 35720, 37976, 38380, 44840, 47470, 47672, 52687, 55460, 59590, 76760, 90193, 94940, 105374, 110920, 113221, 119180, 180386, 189880, 210748, 226442, 238360, 263435, 280073, 360772, 421496, 450965, 452884, 526870, 560146, 566105, 721544, 901930, 905768, 1053740, 1120292, 1132210, 1400365, 1803860, 2107480, 2240584, 2264420, 2800730, 3607720, 4528840, 5321387, 5601460, 10642774, 11202920, 21285548, 26606935, 42571096, 53213870, 106427740, 212855480]

約数ペア:

[(1, 212855480), (2, 106427740), (4, 53213870), (5, 42571096), (8, 26606935), (10, 21285548), (19, 11202920), (20, 10642774), (38, 5601460), (40, 5321387), (47, 4528840), (59, 3607720), (76, 2800730), (94, 2264420), (95, 2240584), (101, 2107480), (118, 1803860), (152, 1400365), (188, 1132210), (190, 1120292), (202, 1053740), (235, 905768), (236, 901930), (295, 721544), (376, 566105), (380, 560146), (404, 526870), (470, 452884), (472, 450965), (505, 421496), (590, 360772), (760, 280073), (808, 263435), (893, 238360), (940, 226442), (1010, 210748), (1121, 189880), (1180, 180386), (1786, 119180), (1880, 113221), (1919, 110920), (2020, 105374), (2242, 94940), (2360, 90193), (2773, 76760), (3572, 59590), (3838, 55460), (4040, 52687), (4465, 47672), (4484, 47470), (4747, 44840), (5546, 38380), (5605, 37976), (5959, 35720), (7144, 29795), (7676, 27730), (8930, 23836), (8968, 23735), (9494, 22420), (9595, 22184), (11092, 19190), (11210, 18988), (11918, 17860), (13865, 15352)]