279472520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:367

約数の個数: 128

約数和(自身を含む): 711244800

約数和(自身を除く): 431772280

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 97, 136, 152, 170, 190, 194, 223, 323, 340, 380, 388, 446, 485, 646, 680, 760, 776, 892, 970, 1115, 1292, 1615, 1649, 1784, 1843, 1940, 2230, 2584, 3230, 3298, 3686, 3791, 3880, 4237, 4460, 6460, 6596, 7372, 7582, 8245, 8474, 8920, 9215, 12920, 13192, 14744, 15164, 16490, 16948, 18430, 18955, 21185, 21631, 30328, 31331, 32980, 33896, 36860, 37910, 42370, 43262, 62662, 65960, 72029, 73720, 75820, 84740, 86524, 108155, 125324, 144058, 151640, 156655, 169480, 173048, 216310, 250648, 288116, 313310, 360145, 367727, 410989, 432620, 576232, 626620, 720290, 735454, 821978, 865240, 1253240, 1440580, 1470908, 1643956, 1838635, 2054945, 2881160, 2941816, 3287912, 3677270, 4109890, 6986813, 7354540, 8219780, 13973626, 14709080, 16439560, 27947252, 34934065, 55894504, 69868130, 139736260, 279472520]

約数ペア:

[(1, 279472520), (2, 139736260), (4, 69868130), (5, 55894504), (8, 34934065), (10, 27947252), (17, 16439560), (19, 14709080), (20, 13973626), (34, 8219780), (38, 7354540), (40, 6986813), (68, 4109890), (76, 3677270), (85, 3287912), (95, 2941816), (97, 2881160), (136, 2054945), (152, 1838635), (170, 1643956), (190, 1470908), (194, 1440580), (223, 1253240), (323, 865240), (340, 821978), (380, 735454), (388, 720290), (446, 626620), (485, 576232), (646, 432620), (680, 410989), (760, 367727), (776, 360145), (892, 313310), (970, 288116), (1115, 250648), (1292, 216310), (1615, 173048), (1649, 169480), (1784, 156655), (1843, 151640), (1940, 144058), (2230, 125324), (2584, 108155), (3230, 86524), (3298, 84740), (3686, 75820), (3791, 73720), (3880, 72029), (4237, 65960), (4460, 62662), (6460, 43262), (6596, 42370), (7372, 37910), (7582, 36860), (8245, 33896), (8474, 32980), (8920, 31331), (9215, 30328), (12920, 21631), (13192, 21185), (14744, 18955), (15164, 18430), (16490, 16948)]