438705280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{787}}^1$

素因数の和:886

約数の個数: 128

約数和(自身を含む): 1147769280

約数和(自身を除く): 709064000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 128, 130, 134, 160, 208, 260, 268, 320, 335, 416, 520, 536, 640, 670, 787, 832, 871, 1040, 1072, 1340, 1574, 1664, 1742, 2080, 2144, 2680, 3148, 3484, 3935, 4160, 4288, 4355, 5360, 6296, 6968, 7870, 8320, 8576, 8710, 10231, 10720, 12592, 13936, 15740, 17420, 20462, 21440, 25184, 27872, 31480, 34840, 40924, 42880, 50368, 51155, 52729, 55744, 62960, 69680, 81848, 100736, 102310, 105458, 111488, 125920, 139360, 163696, 204620, 210916, 251840, 263645, 278720, 327392, 409240, 421832, 503680, 527290, 557440, 654784, 685477, 818480, 843664, 1054580, 1309568, 1370954, 1636960, 1687328, 2109160, 2741908, 3273920, 3374656, 3427385, 4218320, 5483816, 6547840, 6749312, 6854770, 8436640, 10967632, 13709540, 16873280, 21935264, 27419080, 33746560, 43870528, 54838160, 87741056, 109676320, 219352640, 438705280]

約数ペア:

[(1, 438705280), (2, 219352640), (4, 109676320), (5, 87741056), (8, 54838160), (10, 43870528), (13, 33746560), (16, 27419080), (20, 21935264), (26, 16873280), (32, 13709540), (40, 10967632), (52, 8436640), (64, 6854770), (65, 6749312), (67, 6547840), (80, 5483816), (104, 4218320), (128, 3427385), (130, 3374656), (134, 3273920), (160, 2741908), (208, 2109160), (260, 1687328), (268, 1636960), (320, 1370954), (335, 1309568), (416, 1054580), (520, 843664), (536, 818480), (640, 685477), (670, 654784), (787, 557440), (832, 527290), (871, 503680), (1040, 421832), (1072, 409240), (1340, 327392), (1574, 278720), (1664, 263645), (1742, 251840), (2080, 210916), (2144, 204620), (2680, 163696), (3148, 139360), (3484, 125920), (3935, 111488), (4160, 105458), (4288, 102310), (4355, 100736), (5360, 81848), (6296, 69680), (6968, 62960), (7870, 55744), (8320, 52729), (8576, 51155), (8710, 50368), (10231, 42880), (10720, 40924), (12592, 34840), (13936, 31480), (15740, 27872), (17420, 25184), (20462, 21440)]