128393280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:541

約数の個数: 168

約数和(自身を含む): 446760600

約数和(自身を除く): 318367320

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, 64, 72, 80, 90, 96, 109, 120, 144, 160, 180, 192, 218, 240, 288, 320, 327, 360, 409, 436, 480, 545, 576, 654, 720, 818, 872, 960, 981, 1090, 1227, 1308, 1440, 1635, 1636, 1744, 1962, 2045, 2180, 2454, 2616, 2880, 3270, 3272, 3488, 3681, 3924, 4090, 4360, 4905, 4908, 5232, 6135, 6540, 6544, 6976, 7362, 7848, 8180, 8720, 9810, 9816, 10464, 12270, 13080, 13088, 14724, 15696, 16360, 17440, 18405, 19620, 19632, 20928, 24540, 26160, 26176, 29448, 31392, 32720, 34880, 36810, 39240, 39264, 44581, 49080, 52320, 58896, 62784, 65440, 73620, 78480, 78528, 89162, 98160, 104640, 117792, 130880, 133743, 147240, 156960, 178324, 196320, 222905, 235584, 267486, 294480, 313920, 356648, 392640, 401229, 445810, 534972, 588960, 668715, 713296, 802458, 891620, 1069944, 1177920, 1337430, 1426592, 1604916, 1783240, 2006145, 2139888, 2674860, 2853184, 3209832, 3566480, 4012290, 4279776, 5349720, 6419664, 7132960, 8024580, 8559552, 10699440, 12839328, 14265920, 16049160, 21398880, 25678656, 32098320, 42797760, 64196640, 128393280]

約数ペア:

[(1, 128393280), (2, 64196640), (3, 42797760), (4, 32098320), (5, 25678656), (6, 21398880), (8, 16049160), (9, 14265920), (10, 12839328), (12, 10699440), (15, 8559552), (16, 8024580), (18, 7132960), (20, 6419664), (24, 5349720), (30, 4279776), (32, 4012290), (36, 3566480), (40, 3209832), (45, 2853184), (48, 2674860), (60, 2139888), (64, 2006145), (72, 1783240), (80, 1604916), (90, 1426592), (96, 1337430), (109, 1177920), (120, 1069944), (144, 891620), (160, 802458), (180, 713296), (192, 668715), (218, 588960), (240, 534972), (288, 445810), (320, 401229), (327, 392640), (360, 356648), (409, 313920), (436, 294480), (480, 267486), (545, 235584), (576, 222905), (654, 196320), (720, 178324), (818, 156960), (872, 147240), (960, 133743), (981, 130880), (1090, 117792), (1227, 104640), (1308, 98160), (1440, 89162), (1635, 78528), (1636, 78480), (1744, 73620), (1962, 65440), (2045, 62784), (2180, 58896), (2454, 52320), (2616, 49080), (2880, 44581), (3270, 39264), (3272, 39240), (3488, 36810), (3681, 34880), (3924, 32720), (4090, 31392), (4360, 29448), (4905, 26176), (4908, 26160), (5232, 24540), (6135, 20928), (6540, 19632), (6544, 19620), (6976, 18405), (7362, 17440), (7848, 16360), (8180, 15696), (8720, 14724), (9810, 13088), (9816, 13080), (10464, 12270)]