1387393840

素因数分解:

$2^4\times 5^1\times 7^4\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 200

約数和(自身を含む): 3901143168

約数和(自身を除く): 2513749328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 233, 245, 248, 280, 310, 343, 392, 434, 466, 490, 496, 560, 620, 686, 784, 868, 932, 980, 1085, 1165, 1240, 1372, 1519, 1631, 1715, 1736, 1864, 1960, 2170, 2330, 2401, 2480, 2744, 3038, 3262, 3430, 3472, 3728, 3920, 4340, 4660, 4802, 5488, 6076, 6524, 6860, 7223, 7595, 8155, 8680, 9320, 9604, 10633, 11417, 12005, 12152, 13048, 13720, 14446, 15190, 16310, 17360, 18640, 19208, 21266, 22834, 24010, 24304, 26096, 27440, 28892, 30380, 32620, 36115, 38416, 42532, 45668, 48020, 50561, 53165, 57085, 57784, 60760, 65240, 72230, 74431, 79919, 85064, 91336, 96040, 101122, 106330, 114170, 115568, 121520, 130480, 144460, 148862, 159838, 170128, 182672, 192080, 202244, 212660, 228340, 252805, 288920, 297724, 319676, 353927, 372155, 399595, 404488, 425320, 456680, 505610, 559433, 577840, 595448, 639352, 707854, 744310, 799190, 808976, 850640, 913360, 1011220, 1118866, 1190896, 1278704, 1415708, 1488620, 1598380, 1769635, 2022440, 2237732, 2477489, 2797165, 2831416, 2977240, 3196760, 3539270, 4044880, 4475464, 4954978, 5594330, 5662832, 5954480, 6393520, 7078540, 8950928, 9909956, 11188660, 12387445, 14157080, 17342423, 19819912, 22377320, 24774890, 28314160, 34684846, 39639824, 44754640, 49549780, 69369692, 86712115, 99099560, 138739384, 173424230, 198199120, 277478768, 346848460, 693696920, 1387393840]

約数ペア:

[(1, 1387393840), (2, 693696920), (4, 346848460), (5, 277478768), (7, 198199120), (8, 173424230), (10, 138739384), (14, 99099560), (16, 86712115), (20, 69369692), (28, 49549780), (31, 44754640), (35, 39639824), (40, 34684846), (49, 28314160), (56, 24774890), (62, 22377320), (70, 19819912), (80, 17342423), (98, 14157080), (112, 12387445), (124, 11188660), (140, 9909956), (155, 8950928), (196, 7078540), (217, 6393520), (233, 5954480), (245, 5662832), (248, 5594330), (280, 4954978), (310, 4475464), (343, 4044880), (392, 3539270), (434, 3196760), (466, 2977240), (490, 2831416), (496, 2797165), (560, 2477489), (620, 2237732), (686, 2022440), (784, 1769635), (868, 1598380), (932, 1488620), (980, 1415708), (1085, 1278704), (1165, 1190896), (1240, 1118866), (1372, 1011220), (1519, 913360), (1631, 850640), (1715, 808976), (1736, 799190), (1864, 744310), (1960, 707854), (2170, 639352), (2330, 595448), (2401, 577840), (2480, 559433), (2744, 505610), (3038, 456680), (3262, 425320), (3430, 404488), (3472, 399595), (3728, 372155), (3920, 353927), (4340, 319676), (4660, 297724), (4802, 288920), (5488, 252805), (6076, 228340), (6524, 212660), (6860, 202244), (7223, 192080), (7595, 182672), (8155, 170128), (8680, 159838), (9320, 148862), (9604, 144460), (10633, 130480), (11417, 121520), (12005, 115568), (12152, 114170), (13048, 106330), (13720, 101122), (14446, 96040), (15190, 91336), (16310, 85064), (17360, 79919), (18640, 74431), (19208, 72230), (21266, 65240), (22834, 60760), (24010, 57784), (24304, 57085), (26096, 53165), (27440, 50561), (28892, 48020), (30380, 45668), (32620, 42532), (36115, 38416)]