1981555920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2243}}^1$

素因数の和:2674

約数の個数: 160

約数和(自身を含む): 6845097600

約数和(自身を除く): 4863541680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 409, 432, 540, 720, 818, 1080, 1227, 1636, 2045, 2160, 2243, 2454, 3272, 3681, 4090, 4486, 4908, 6135, 6544, 6729, 7362, 8180, 8972, 9816, 11043, 11215, 12270, 13458, 14724, 16360, 17944, 18405, 19632, 20187, 22086, 22430, 24540, 26916, 29448, 32720, 33645, 35888, 36810, 40374, 44172, 44860, 49080, 53832, 55215, 58896, 60561, 67290, 73620, 80748, 88344, 89720, 98160, 100935, 107664, 110430, 121122, 134580, 147240, 161496, 176688, 179440, 201870, 220860, 242244, 269160, 294480, 302805, 322992, 403740, 441720, 484488, 538320, 605610, 807480, 883440, 917387, 968976, 1211220, 1614960, 1834774, 2422440, 2752161, 3669548, 4586935, 4844880, 5504322, 7339096, 8256483, 9173870, 11008644, 13760805, 14678192, 16512966, 18347740, 22017288, 24769449, 27521610, 33025932, 36695480, 41282415, 44034576, 49538898, 55043220, 66051864, 73390960, 82564830, 99077796, 110086440, 123847245, 132103728, 165129660, 198155592, 220172880, 247694490, 330259320, 396311184, 495388980, 660518640, 990777960, 1981555920]

約数ペア:

[(1, 1981555920), (2, 990777960), (3, 660518640), (4, 495388980), (5, 396311184), (6, 330259320), (8, 247694490), (9, 220172880), (10, 198155592), (12, 165129660), (15, 132103728), (16, 123847245), (18, 110086440), (20, 99077796), (24, 82564830), (27, 73390960), (30, 66051864), (36, 55043220), (40, 49538898), (45, 44034576), (48, 41282415), (54, 36695480), (60, 33025932), (72, 27521610), (80, 24769449), (90, 22017288), (108, 18347740), (120, 16512966), (135, 14678192), (144, 13760805), (180, 11008644), (216, 9173870), (240, 8256483), (270, 7339096), (360, 5504322), (409, 4844880), (432, 4586935), (540, 3669548), (720, 2752161), (818, 2422440), (1080, 1834774), (1227, 1614960), (1636, 1211220), (2045, 968976), (2160, 917387), (2243, 883440), (2454, 807480), (3272, 605610), (3681, 538320), (4090, 484488), (4486, 441720), (4908, 403740), (6135, 322992), (6544, 302805), (6729, 294480), (7362, 269160), (8180, 242244), (8972, 220860), (9816, 201870), (11043, 179440), (11215, 176688), (12270, 161496), (13458, 147240), (14724, 134580), (16360, 121122), (17944, 110430), (18405, 107664), (19632, 100935), (20187, 98160), (22086, 89720), (22430, 88344), (24540, 80748), (26916, 73620), (29448, 67290), (32720, 60561), (33645, 58896), (35888, 55215), (36810, 53832), (40374, 49080), (44172, 44860)]