28900900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 78744960

約数和(自身を除く): 49844060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 41, 50, 53, 70, 76, 82, 95, 100, 106, 133, 140, 164, 175, 190, 205, 212, 265, 266, 287, 350, 371, 380, 410, 475, 530, 532, 574, 665, 700, 742, 779, 820, 950, 1007, 1025, 1060, 1148, 1325, 1330, 1435, 1484, 1558, 1855, 1900, 2014, 2050, 2173, 2650, 2660, 2870, 3116, 3325, 3710, 3895, 4028, 4100, 4346, 5035, 5300, 5453, 5740, 6650, 7049, 7175, 7420, 7790, 8692, 9275, 10070, 10865, 10906, 13300, 14098, 14350, 15211, 15580, 18550, 19475, 20140, 21730, 21812, 25175, 27265, 28196, 28700, 30422, 35245, 37100, 38950, 41287, 43460, 50350, 54325, 54530, 60844, 70490, 76055, 77900, 82574, 100700, 108650, 109060, 136325, 140980, 152110, 165148, 176225, 206435, 217300, 272650, 289009, 304220, 352450, 380275, 412870, 545300, 578018, 704900, 760550, 825740, 1032175, 1156036, 1445045, 1521100, 2064350, 2890090, 4128700, 5780180, 7225225, 14450450, 28900900]

約数ペア:

[(1, 28900900), (2, 14450450), (4, 7225225), (5, 5780180), (7, 4128700), (10, 2890090), (14, 2064350), (19, 1521100), (20, 1445045), (25, 1156036), (28, 1032175), (35, 825740), (38, 760550), (41, 704900), (50, 578018), (53, 545300), (70, 412870), (76, 380275), (82, 352450), (95, 304220), (100, 289009), (106, 272650), (133, 217300), (140, 206435), (164, 176225), (175, 165148), (190, 152110), (205, 140980), (212, 136325), (265, 109060), (266, 108650), (287, 100700), (350, 82574), (371, 77900), (380, 76055), (410, 70490), (475, 60844), (530, 54530), (532, 54325), (574, 50350), (665, 43460), (700, 41287), (742, 38950), (779, 37100), (820, 35245), (950, 30422), (1007, 28700), (1025, 28196), (1060, 27265), (1148, 25175), (1325, 21812), (1330, 21730), (1435, 20140), (1484, 19475), (1558, 18550), (1855, 15580), (1900, 15211), (2014, 14350), (2050, 14098), (2173, 13300), (2650, 10906), (2660, 10865), (2870, 10070), (3116, 9275), (3325, 8692), (3710, 7790), (3895, 7420), (4028, 7175), (4100, 7049), (4346, 6650), (5035, 5740), (5300, 5453)]