209760880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 160

約数和(自身を含む): 590819328

約数和(自身を除く): 381058448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 43, 56, 62, 70, 80, 86, 112, 124, 140, 155, 172, 215, 217, 248, 280, 281, 301, 310, 344, 430, 434, 496, 560, 562, 602, 620, 688, 860, 868, 1085, 1124, 1204, 1240, 1333, 1405, 1505, 1720, 1736, 1967, 2170, 2248, 2408, 2480, 2666, 2810, 3010, 3440, 3472, 3934, 4340, 4496, 4816, 5332, 5620, 6020, 6665, 7868, 8680, 8711, 9331, 9835, 10664, 11240, 12040, 12083, 13330, 15736, 17360, 17422, 18662, 19670, 21328, 22480, 24080, 24166, 26660, 31472, 34844, 37324, 39340, 43555, 46655, 48332, 53320, 60415, 60977, 69688, 74648, 78680, 84581, 87110, 93310, 96664, 106640, 120830, 121954, 139376, 149296, 157360, 169162, 174220, 186620, 193328, 241660, 243908, 304885, 338324, 348440, 373240, 374573, 422905, 483320, 487816, 609770, 676648, 696880, 746480, 749146, 845810, 966640, 975632, 1219540, 1353296, 1498292, 1691620, 1872865, 2439080, 2622011, 2996584, 3383240, 3745730, 4878160, 5244022, 5993168, 6766480, 7491460, 10488044, 13110055, 14982920, 20976088, 26220110, 29965840, 41952176, 52440220, 104880440, 209760880]

約数ペア:

[(1, 209760880), (2, 104880440), (4, 52440220), (5, 41952176), (7, 29965840), (8, 26220110), (10, 20976088), (14, 14982920), (16, 13110055), (20, 10488044), (28, 7491460), (31, 6766480), (35, 5993168), (40, 5244022), (43, 4878160), (56, 3745730), (62, 3383240), (70, 2996584), (80, 2622011), (86, 2439080), (112, 1872865), (124, 1691620), (140, 1498292), (155, 1353296), (172, 1219540), (215, 975632), (217, 966640), (248, 845810), (280, 749146), (281, 746480), (301, 696880), (310, 676648), (344, 609770), (430, 487816), (434, 483320), (496, 422905), (560, 374573), (562, 373240), (602, 348440), (620, 338324), (688, 304885), (860, 243908), (868, 241660), (1085, 193328), (1124, 186620), (1204, 174220), (1240, 169162), (1333, 157360), (1405, 149296), (1505, 139376), (1720, 121954), (1736, 120830), (1967, 106640), (2170, 96664), (2248, 93310), (2408, 87110), (2480, 84581), (2666, 78680), (2810, 74648), (3010, 69688), (3440, 60977), (3472, 60415), (3934, 53320), (4340, 48332), (4496, 46655), (4816, 43555), (5332, 39340), (5620, 37324), (6020, 34844), (6665, 31472), (7868, 26660), (8680, 24166), (8711, 24080), (9331, 22480), (9835, 21328), (10664, 19670), (11240, 18662), (12040, 17422), (12083, 17360), (13330, 15736)]