28738640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 160

約数和(自身を含む): 83685120

約数和(自身を除く): 54946480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 37, 38, 40, 56, 70, 73, 74, 76, 80, 95, 112, 133, 140, 146, 148, 152, 185, 190, 259, 266, 280, 292, 296, 304, 365, 370, 380, 511, 518, 532, 560, 584, 592, 665, 703, 730, 740, 760, 1022, 1036, 1064, 1168, 1295, 1330, 1387, 1406, 1460, 1480, 1520, 2044, 2072, 2128, 2555, 2590, 2660, 2701, 2774, 2812, 2920, 2960, 3515, 4088, 4144, 4921, 5110, 5180, 5320, 5402, 5548, 5624, 5840, 6935, 7030, 8176, 9709, 9842, 10220, 10360, 10640, 10804, 11096, 11248, 13505, 13870, 14060, 18907, 19418, 19684, 20440, 20720, 21608, 22192, 24605, 27010, 27740, 28120, 37814, 38836, 39368, 40880, 43216, 48545, 49210, 51319, 54020, 55480, 56240, 75628, 77672, 78736, 94535, 97090, 98420, 102638, 108040, 110960, 151256, 155344, 189070, 194180, 196840, 205276, 216080, 256595, 302512, 359233, 378140, 388360, 393680, 410552, 513190, 718466, 756280, 776720, 821104, 1026380, 1436932, 1512560, 1796165, 2052760, 2873864, 3592330, 4105520, 5747728, 7184660, 14369320, 28738640]

約数ペア:

[(1, 28738640), (2, 14369320), (4, 7184660), (5, 5747728), (7, 4105520), (8, 3592330), (10, 2873864), (14, 2052760), (16, 1796165), (19, 1512560), (20, 1436932), (28, 1026380), (35, 821104), (37, 776720), (38, 756280), (40, 718466), (56, 513190), (70, 410552), (73, 393680), (74, 388360), (76, 378140), (80, 359233), (95, 302512), (112, 256595), (133, 216080), (140, 205276), (146, 196840), (148, 194180), (152, 189070), (185, 155344), (190, 151256), (259, 110960), (266, 108040), (280, 102638), (292, 98420), (296, 97090), (304, 94535), (365, 78736), (370, 77672), (380, 75628), (511, 56240), (518, 55480), (532, 54020), (560, 51319), (584, 49210), (592, 48545), (665, 43216), (703, 40880), (730, 39368), (740, 38836), (760, 37814), (1022, 28120), (1036, 27740), (1064, 27010), (1168, 24605), (1295, 22192), (1330, 21608), (1387, 20720), (1406, 20440), (1460, 19684), (1480, 19418), (1520, 18907), (2044, 14060), (2072, 13870), (2128, 13505), (2555, 11248), (2590, 11096), (2660, 10804), (2701, 10640), (2774, 10360), (2812, 10220), (2920, 9842), (2960, 9709), (3515, 8176), (4088, 7030), (4144, 6935), (4921, 5840), (5110, 5624), (5180, 5548), (5320, 5402)]