18460240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 45421200

約数和(自身を除く): 26960960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 73, 80, 109, 116, 145, 146, 218, 232, 290, 292, 365, 436, 464, 545, 580, 584, 730, 872, 1090, 1160, 1168, 1460, 1744, 2117, 2180, 2320, 2920, 3161, 4234, 4360, 5840, 6322, 7957, 8468, 8720, 10585, 12644, 15805, 15914, 16936, 21170, 25288, 31610, 31828, 33872, 39785, 42340, 50576, 63220, 63656, 79570, 84680, 126440, 127312, 159140, 169360, 230753, 252880, 318280, 461506, 636560, 923012, 1153765, 1846024, 2307530, 3692048, 4615060, 9230120, 18460240]

約数ペア:

[(1, 18460240), (2, 9230120), (4, 4615060), (5, 3692048), (8, 2307530), (10, 1846024), (16, 1153765), (20, 923012), (29, 636560), (40, 461506), (58, 318280), (73, 252880), (80, 230753), (109, 169360), (116, 159140), (145, 127312), (146, 126440), (218, 84680), (232, 79570), (290, 63656), (292, 63220), (365, 50576), (436, 42340), (464, 39785), (545, 33872), (580, 31828), (584, 31610), (730, 25288), (872, 21170), (1090, 16936), (1160, 15914), (1168, 15805), (1460, 12644), (1744, 10585), (2117, 8720), (2180, 8468), (2320, 7957), (2920, 6322), (3161, 5840), (4234, 4360)]