18949760

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1021}}^1$

素因数の和:1069

約数の個数: 64

約数和(自身を含む): 46909800

約数和(自身を除く): 27960040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1021, 1160, 1856, 2042, 2320, 3712, 4084, 4640, 5105, 8168, 9280, 10210, 16336, 18560, 20420, 29609, 32672, 40840, 59218, 65344, 81680, 118436, 130688, 148045, 163360, 236872, 296090, 326720, 473744, 592180, 653440, 947488, 1184360, 1894976, 2368720, 3789952, 4737440, 9474880, 18949760]

約数ペア:

[(1, 18949760), (2, 9474880), (4, 4737440), (5, 3789952), (8, 2368720), (10, 1894976), (16, 1184360), (20, 947488), (29, 653440), (32, 592180), (40, 473744), (58, 326720), (64, 296090), (80, 236872), (116, 163360), (128, 148045), (145, 130688), (160, 118436), (232, 81680), (290, 65344), (320, 59218), (464, 40840), (580, 32672), (640, 29609), (928, 20420), (1021, 18560), (1160, 16336), (1856, 10210), (2042, 9280), (2320, 8168), (3712, 5105), (4084, 4640)]