245157360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1999}}^1$

素因数の和:2095

約数の個数: 160

約数和(自身を含む): 880896000

約数和(自身を除く): 635738640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 73, 80, 84, 105, 112, 120, 140, 146, 168, 210, 219, 240, 280, 292, 336, 365, 420, 438, 511, 560, 584, 730, 840, 876, 1022, 1095, 1168, 1460, 1533, 1680, 1752, 1999, 2044, 2190, 2555, 2920, 3066, 3504, 3998, 4088, 4380, 5110, 5840, 5997, 6132, 7665, 7996, 8176, 8760, 9995, 10220, 11994, 12264, 13993, 15330, 15992, 17520, 19990, 20440, 23988, 24528, 27986, 29985, 30660, 31984, 39980, 40880, 41979, 47976, 55972, 59970, 61320, 69965, 79960, 83958, 95952, 111944, 119940, 122640, 139930, 145927, 159920, 167916, 209895, 223888, 239880, 279860, 291854, 335832, 419790, 437781, 479760, 559720, 583708, 671664, 729635, 839580, 875562, 1021489, 1119440, 1167416, 1459270, 1679160, 1751124, 2042978, 2188905, 2334832, 2918540, 3064467, 3358320, 3502248, 4085956, 4377810, 5107445, 5837080, 6128934, 7004496, 8171912, 8755620, 10214890, 11674160, 12257868, 15322335, 16343824, 17511240, 20429780, 24515736, 30644670, 35022480, 40859560, 49031472, 61289340, 81719120, 122578680, 245157360]

約数ペア:

[(1, 245157360), (2, 122578680), (3, 81719120), (4, 61289340), (5, 49031472), (6, 40859560), (7, 35022480), (8, 30644670), (10, 24515736), (12, 20429780), (14, 17511240), (15, 16343824), (16, 15322335), (20, 12257868), (21, 11674160), (24, 10214890), (28, 8755620), (30, 8171912), (35, 7004496), (40, 6128934), (42, 5837080), (48, 5107445), (56, 4377810), (60, 4085956), (70, 3502248), (73, 3358320), (80, 3064467), (84, 2918540), (105, 2334832), (112, 2188905), (120, 2042978), (140, 1751124), (146, 1679160), (168, 1459270), (210, 1167416), (219, 1119440), (240, 1021489), (280, 875562), (292, 839580), (336, 729635), (365, 671664), (420, 583708), (438, 559720), (511, 479760), (560, 437781), (584, 419790), (730, 335832), (840, 291854), (876, 279860), (1022, 239880), (1095, 223888), (1168, 209895), (1460, 167916), (1533, 159920), (1680, 145927), (1752, 139930), (1999, 122640), (2044, 119940), (2190, 111944), (2555, 95952), (2920, 83958), (3066, 79960), (3504, 69965), (3998, 61320), (4088, 59970), (4380, 55972), (5110, 47976), (5840, 41979), (5997, 40880), (6132, 39980), (7665, 31984), (7996, 30660), (8176, 29985), (8760, 27986), (9995, 24528), (10220, 23988), (11994, 20440), (12264, 19990), (13993, 17520), (15330, 15992)]