20201600

素因数分解:

$2^7\times 5^2\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 51224400

約数和(自身を除く): 31022800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 80, 100, 107, 118, 128, 160, 200, 214, 236, 295, 320, 400, 428, 472, 535, 590, 640, 800, 856, 944, 1070, 1180, 1475, 1600, 1712, 1888, 2140, 2360, 2675, 2950, 3200, 3424, 3776, 4280, 4720, 5350, 5900, 6313, 6848, 7552, 8560, 9440, 10700, 11800, 12626, 13696, 17120, 18880, 21400, 23600, 25252, 31565, 34240, 37760, 42800, 47200, 50504, 63130, 68480, 85600, 94400, 101008, 126260, 157825, 171200, 188800, 202016, 252520, 315650, 342400, 404032, 505040, 631300, 808064, 1010080, 1262600, 2020160, 2525200, 4040320, 5050400, 10100800, 20201600]

約数ペア:

[(1, 20201600), (2, 10100800), (4, 5050400), (5, 4040320), (8, 2525200), (10, 2020160), (16, 1262600), (20, 1010080), (25, 808064), (32, 631300), (40, 505040), (50, 404032), (59, 342400), (64, 315650), (80, 252520), (100, 202016), (107, 188800), (118, 171200), (128, 157825), (160, 126260), (200, 101008), (214, 94400), (236, 85600), (295, 68480), (320, 63130), (400, 50504), (428, 47200), (472, 42800), (535, 37760), (590, 34240), (640, 31565), (800, 25252), (856, 23600), (944, 21400), (1070, 18880), (1180, 17120), (1475, 13696), (1600, 12626), (1712, 11800), (1888, 10700), (2140, 9440), (2360, 8560), (2675, 7552), (2950, 6848), (3200, 6313), (3424, 5900), (3776, 5350), (4280, 4720)]