18561280

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{853}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 47130552

約数和(自身を除く): 28569272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 853, 1088, 1280, 1360, 1706, 2176, 2720, 3412, 4265, 4352, 5440, 6824, 8530, 10880, 13648, 14501, 17060, 21760, 27296, 29002, 34120, 54592, 58004, 68240, 72505, 109184, 116008, 136480, 145010, 218368, 232016, 272960, 290020, 464032, 545920, 580040, 928064, 1091840, 1160080, 1856128, 2320160, 3712256, 4640320, 9280640, 18561280]

約数ペア:

[(1, 18561280), (2, 9280640), (4, 4640320), (5, 3712256), (8, 2320160), (10, 1856128), (16, 1160080), (17, 1091840), (20, 928064), (32, 580040), (34, 545920), (40, 464032), (64, 290020), (68, 272960), (80, 232016), (85, 218368), (128, 145010), (136, 136480), (160, 116008), (170, 109184), (256, 72505), (272, 68240), (320, 58004), (340, 54592), (544, 34120), (640, 29002), (680, 27296), (853, 21760), (1088, 17060), (1280, 14501), (1360, 13648), (1706, 10880), (2176, 8530), (2720, 6824), (3412, 5440), (4265, 4352)]