20798910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41409090

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 47, 54, 55, 66, 90, 94, 99, 110, 135, 141, 149, 165, 198, 235, 270, 282, 297, 298, 330, 423, 447, 470, 495, 517, 594, 705, 745, 846, 894, 990, 1034, 1269, 1341, 1410, 1485, 1490, 1551, 1639, 2115, 2235, 2538, 2585, 2682, 2970, 3102, 3278, 4023, 4230, 4470, 4653, 4917, 5170, 6345, 6705, 7003, 7755, 8046, 8195, 9306, 9834, 12690, 13410, 13959, 14006, 14751, 15510, 16390, 20115, 21009, 23265, 24585, 27918, 29502, 35015, 40230, 42018, 44253, 46530, 49170, 63027, 69795, 70030, 73755, 77033, 88506, 105045, 126054, 139590, 147510, 154066, 189081, 210090, 221265, 231099, 315135, 378162, 385165, 442530, 462198, 630270, 693297, 770330, 945405, 1155495, 1386594, 1890810, 2079891, 2310990, 3466485, 4159782, 6932970, 10399455, 20798910]

約数ペア:

[(1, 20798910), (2, 10399455), (3, 6932970), (5, 4159782), (6, 3466485), (9, 2310990), (10, 2079891), (11, 1890810), (15, 1386594), (18, 1155495), (22, 945405), (27, 770330), (30, 693297), (33, 630270), (45, 462198), (47, 442530), (54, 385165), (55, 378162), (66, 315135), (90, 231099), (94, 221265), (99, 210090), (110, 189081), (135, 154066), (141, 147510), (149, 139590), (165, 126054), (198, 105045), (235, 88506), (270, 77033), (282, 73755), (297, 70030), (298, 69795), (330, 63027), (423, 49170), (447, 46530), (470, 44253), (495, 42018), (517, 40230), (594, 35015), (705, 29502), (745, 27918), (846, 24585), (894, 23265), (990, 21009), (1034, 20115), (1269, 16390), (1341, 15510), (1410, 14751), (1485, 14006), (1490, 13959), (1551, 13410), (1639, 12690), (2115, 9834), (2235, 9306), (2538, 8195), (2585, 8046), (2682, 7755), (2970, 7003), (3102, 6705), (3278, 6345), (4023, 5170), (4230, 4917), (4470, 4653)]