17990460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1123}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 55233360

約数和(自身を除く): 37242900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1123, 1335, 1602, 1780, 2246, 2670, 3204, 3369, 4005, 4492, 5340, 5615, 6738, 8010, 10107, 11230, 13476, 16020, 16845, 20214, 22460, 33690, 40428, 50535, 67380, 99947, 101070, 199894, 202140, 299841, 399788, 499735, 599682, 899523, 999470, 1199364, 1499205, 1799046, 1998940, 2998410, 3598092, 4497615, 5996820, 8995230, 17990460]

約数ペア:

[(1, 17990460), (2, 8995230), (3, 5996820), (4, 4497615), (5, 3598092), (6, 2998410), (9, 1998940), (10, 1799046), (12, 1499205), (15, 1199364), (18, 999470), (20, 899523), (30, 599682), (36, 499735), (45, 399788), (60, 299841), (89, 202140), (90, 199894), (178, 101070), (180, 99947), (267, 67380), (356, 50535), (445, 40428), (534, 33690), (801, 22460), (890, 20214), (1068, 16845), (1123, 16020), (1335, 13476), (1602, 11230), (1780, 10107), (2246, 8010), (2670, 6738), (3204, 5615), (3369, 5340), (4005, 4492)]