90120400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 120

約数和(自身を含む): 237674520

約数和(自身を除く): 147554120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 29, 34, 40, 50, 58, 68, 80, 85, 100, 116, 136, 145, 170, 200, 232, 272, 290, 340, 400, 425, 457, 464, 493, 580, 680, 725, 850, 914, 986, 1160, 1360, 1450, 1700, 1828, 1972, 2285, 2320, 2465, 2900, 3400, 3656, 3944, 4570, 4930, 5800, 6800, 7312, 7769, 7888, 9140, 9860, 11425, 11600, 12325, 13253, 15538, 18280, 19720, 22850, 24650, 26506, 31076, 36560, 38845, 39440, 45700, 49300, 53012, 62152, 66265, 77690, 91400, 98600, 106024, 124304, 132530, 155380, 182800, 194225, 197200, 212048, 225301, 265060, 310760, 331325, 388450, 450602, 530120, 621520, 662650, 776900, 901204, 1060240, 1126505, 1325300, 1553800, 1802408, 2253010, 2650600, 3107600, 3604816, 4506020, 5301200, 5632525, 9012040, 11265050, 18024080, 22530100, 45060200, 90120400]

約数ペア:

[(1, 90120400), (2, 45060200), (4, 22530100), (5, 18024080), (8, 11265050), (10, 9012040), (16, 5632525), (17, 5301200), (20, 4506020), (25, 3604816), (29, 3107600), (34, 2650600), (40, 2253010), (50, 1802408), (58, 1553800), (68, 1325300), (80, 1126505), (85, 1060240), (100, 901204), (116, 776900), (136, 662650), (145, 621520), (170, 530120), (200, 450602), (232, 388450), (272, 331325), (290, 310760), (340, 265060), (400, 225301), (425, 212048), (457, 197200), (464, 194225), (493, 182800), (580, 155380), (680, 132530), (725, 124304), (850, 106024), (914, 98600), (986, 91400), (1160, 77690), (1360, 66265), (1450, 62152), (1700, 53012), (1828, 49300), (1972, 45700), (2285, 39440), (2320, 38845), (2465, 36560), (2900, 31076), (3400, 26506), (3656, 24650), (3944, 22850), (4570, 19720), (4930, 18280), (5800, 15538), (6800, 13253), (7312, 12325), (7769, 11600), (7888, 11425), (9140, 9860)]