256209120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{983}}^1$

素因数の和:1185

約数の個数: 144

約数和(自身を含む): 880038432

約数和(自身を除く): 623829312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 181, 240, 288, 360, 362, 480, 543, 720, 724, 905, 983, 1086, 1440, 1448, 1629, 1810, 1966, 2172, 2715, 2896, 2949, 3258, 3620, 3932, 4344, 4915, 5430, 5792, 5898, 6516, 7240, 7864, 8145, 8688, 8847, 9830, 10860, 11796, 13032, 14480, 14745, 15728, 16290, 17376, 17694, 19660, 21720, 23592, 26064, 28960, 29490, 31456, 32580, 35388, 39320, 43440, 44235, 47184, 52128, 58980, 65160, 70776, 78640, 86880, 88470, 94368, 117960, 130320, 141552, 157280, 176940, 177923, 235920, 260640, 283104, 353880, 355846, 471840, 533769, 707760, 711692, 889615, 1067538, 1415520, 1423384, 1601307, 1779230, 2135076, 2668845, 2846768, 3202614, 3558460, 4270152, 5337690, 5693536, 6405228, 7116920, 8006535, 8540304, 10675380, 12810456, 14233840, 16013070, 17080608, 21350760, 25620912, 28467680, 32026140, 42701520, 51241824, 64052280, 85403040, 128104560, 256209120]

約数ペア:

[(1, 256209120), (2, 128104560), (3, 85403040), (4, 64052280), (5, 51241824), (6, 42701520), (8, 32026140), (9, 28467680), (10, 25620912), (12, 21350760), (15, 17080608), (16, 16013070), (18, 14233840), (20, 12810456), (24, 10675380), (30, 8540304), (32, 8006535), (36, 7116920), (40, 6405228), (45, 5693536), (48, 5337690), (60, 4270152), (72, 3558460), (80, 3202614), (90, 2846768), (96, 2668845), (120, 2135076), (144, 1779230), (160, 1601307), (180, 1423384), (181, 1415520), (240, 1067538), (288, 889615), (360, 711692), (362, 707760), (480, 533769), (543, 471840), (720, 355846), (724, 353880), (905, 283104), (983, 260640), (1086, 235920), (1440, 177923), (1448, 176940), (1629, 157280), (1810, 141552), (1966, 130320), (2172, 117960), (2715, 94368), (2896, 88470), (2949, 86880), (3258, 78640), (3620, 70776), (3932, 65160), (4344, 58980), (4915, 52128), (5430, 47184), (5792, 44235), (5898, 43440), (6516, 39320), (7240, 35388), (7864, 32580), (8145, 31456), (8688, 29490), (8847, 28960), (9830, 26064), (10860, 23592), (11796, 21720), (13032, 19660), (14480, 17694), (14745, 17376), (15728, 16290)]