400508720650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{42901}}^1$

素因数の和:43280

約数の個数: 96

約数和(自身を含む): 812021598720

約数和(自身を除く): 411512878070

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 317, 475, 589, 634, 775, 950, 1178, 1550, 1585, 2945, 3170, 5890, 6023, 7925, 9827, 12046, 14725, 15850, 19654, 29450, 30115, 42901, 49135, 60230, 85802, 98270, 150575, 186713, 214505, 245675, 301150, 373426, 429010, 491350, 815119, 933565, 1072525, 1329931, 1630238, 1867130, 2145050, 2659862, 4075595, 4667825, 6649655, 8151190, 9335650, 13299310, 13599617, 20377975, 25268689, 27199234, 33248275, 40755950, 50537378, 66496550, 67998085, 126343445, 135996170, 252686890, 258392723, 339990425, 421588127, 516785446, 631717225, 679980850, 843176254, 1263434450, 1291963615, 2107940635, 2583927230, 4215881270, 6459818075, 8010174413, 10539703175, 12919636150, 16020348826, 21079406350, 40050872065, 80101744130, 200254360325, 400508720650]

約数ペア:

[(1, 400508720650), (2, 200254360325), (5, 80101744130), (10, 40050872065), (19, 21079406350), (25, 16020348826), (31, 12919636150), (38, 10539703175), (50, 8010174413), (62, 6459818075), (95, 4215881270), (155, 2583927230), (190, 2107940635), (310, 1291963615), (317, 1263434450), (475, 843176254), (589, 679980850), (634, 631717225), (775, 516785446), (950, 421588127), (1178, 339990425), (1550, 258392723), (1585, 252686890), (2945, 135996170), (3170, 126343445), (5890, 67998085), (6023, 66496550), (7925, 50537378), (9827, 40755950), (12046, 33248275), (14725, 27199234), (15850, 25268689), (19654, 20377975), (29450, 13599617), (30115, 13299310), (42901, 9335650), (49135, 8151190), (60230, 6649655), (85802, 4667825), (98270, 4075595), (150575, 2659862), (186713, 2145050), (214505, 1867130), (245675, 1630238), (301150, 1329931), (373426, 1072525), (429010, 933565), (491350, 815119)]