19894680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 72468000

約数和(自身を除く): 52573320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 109, 117, 120, 130, 135, 156, 169, 180, 195, 216, 218, 234, 260, 270, 312, 327, 338, 351, 360, 390, 436, 468, 507, 520, 540, 545, 585, 654, 676, 702, 780, 845, 872, 936, 981, 1014, 1080, 1090, 1170, 1308, 1352, 1404, 1417, 1521, 1560, 1635, 1690, 1755, 1962, 2028, 2180, 2340, 2535, 2616, 2808, 2834, 2943, 3042, 3270, 3380, 3510, 3924, 4056, 4251, 4360, 4563, 4680, 4905, 5070, 5668, 5886, 6084, 6540, 6760, 7020, 7085, 7605, 7848, 8502, 9126, 9810, 10140, 11336, 11772, 12168, 12753, 13080, 14040, 14170, 14715, 15210, 17004, 18252, 18421, 19620, 20280, 21255, 22815, 23544, 25506, 28340, 29430, 30420, 34008, 36504, 36842, 38259, 39240, 42510, 45630, 51012, 55263, 56680, 58860, 60840, 63765, 73684, 76518, 85020, 91260, 92105, 102024, 110526, 117720, 127530, 147368, 153036, 165789, 170040, 182520, 184210, 191295, 221052, 255060, 276315, 306072, 331578, 368420, 382590, 442104, 497367, 510120, 552630, 663156, 736840, 765180, 828945, 994734, 1105260, 1326312, 1530360, 1657890, 1989468, 2210520, 2486835, 3315780, 3978936, 4973670, 6631560, 9947340, 19894680]

約数ペア:

[(1, 19894680), (2, 9947340), (3, 6631560), (4, 4973670), (5, 3978936), (6, 3315780), (8, 2486835), (9, 2210520), (10, 1989468), (12, 1657890), (13, 1530360), (15, 1326312), (18, 1105260), (20, 994734), (24, 828945), (26, 765180), (27, 736840), (30, 663156), (36, 552630), (39, 510120), (40, 497367), (45, 442104), (52, 382590), (54, 368420), (60, 331578), (65, 306072), (72, 276315), (78, 255060), (90, 221052), (104, 191295), (108, 184210), (109, 182520), (117, 170040), (120, 165789), (130, 153036), (135, 147368), (156, 127530), (169, 117720), (180, 110526), (195, 102024), (216, 92105), (218, 91260), (234, 85020), (260, 76518), (270, 73684), (312, 63765), (327, 60840), (338, 58860), (351, 56680), (360, 55263), (390, 51012), (436, 45630), (468, 42510), (507, 39240), (520, 38259), (540, 36842), (545, 36504), (585, 34008), (654, 30420), (676, 29430), (702, 28340), (780, 25506), (845, 23544), (872, 22815), (936, 21255), (981, 20280), (1014, 19620), (1080, 18421), (1090, 18252), (1170, 17004), (1308, 15210), (1352, 14715), (1404, 14170), (1417, 14040), (1521, 13080), (1560, 12753), (1635, 12168), (1690, 11772), (1755, 11336), (1962, 10140), (2028, 9810), (2180, 9126), (2340, 8502), (2535, 7848), (2616, 7605), (2808, 7085), (2834, 7020), (2943, 6760), (3042, 6540), (3270, 6084), (3380, 5886), (3510, 5668), (3924, 5070), (4056, 4905), (4251, 4680), (4360, 4563)]