1561911040

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{401}}^1$

素因数の和:618

約数の個数: 144

約数和(自身を含む): 3993403680

約数和(自身を除く): 2431492640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 179, 256, 272, 320, 340, 358, 401, 544, 640, 680, 716, 802, 895, 1088, 1280, 1360, 1432, 1604, 1790, 2005, 2176, 2720, 2864, 3043, 3208, 3580, 4010, 4352, 5440, 5728, 6086, 6416, 6817, 7160, 8020, 10880, 11456, 12172, 12832, 13634, 14320, 15215, 16040, 21760, 22912, 24344, 25664, 27268, 28640, 30430, 32080, 34085, 45824, 48688, 51328, 54536, 57280, 60860, 64160, 68170, 71779, 97376, 102656, 109072, 114560, 121720, 128320, 136340, 143558, 194752, 218144, 229120, 243440, 256640, 272680, 287116, 358895, 389504, 436288, 486880, 513280, 545360, 574232, 717790, 779008, 872576, 973760, 1090720, 1148464, 1220243, 1435580, 1745152, 1947520, 2181440, 2296928, 2440486, 2871160, 3895040, 4362880, 4593856, 4880972, 5742320, 6101215, 8725760, 9187712, 9761944, 11484640, 12202430, 18375424, 19523888, 22969280, 24404860, 39047776, 45938560, 48809720, 78095552, 91877120, 97619440, 156191104, 195238880, 312382208, 390477760, 780955520, 1561911040]

約数ペア:

[(1, 1561911040), (2, 780955520), (4, 390477760), (5, 312382208), (8, 195238880), (10, 156191104), (16, 97619440), (17, 91877120), (20, 78095552), (32, 48809720), (34, 45938560), (40, 39047776), (64, 24404860), (68, 22969280), (80, 19523888), (85, 18375424), (128, 12202430), (136, 11484640), (160, 9761944), (170, 9187712), (179, 8725760), (256, 6101215), (272, 5742320), (320, 4880972), (340, 4593856), (358, 4362880), (401, 3895040), (544, 2871160), (640, 2440486), (680, 2296928), (716, 2181440), (802, 1947520), (895, 1745152), (1088, 1435580), (1280, 1220243), (1360, 1148464), (1432, 1090720), (1604, 973760), (1790, 872576), (2005, 779008), (2176, 717790), (2720, 574232), (2864, 545360), (3043, 513280), (3208, 486880), (3580, 436288), (4010, 389504), (4352, 358895), (5440, 287116), (5728, 272680), (6086, 256640), (6416, 243440), (6817, 229120), (7160, 218144), (8020, 194752), (10880, 143558), (11456, 136340), (12172, 128320), (12832, 121720), (13634, 114560), (14320, 109072), (15215, 102656), (16040, 97376), (21760, 71779), (22912, 68170), (24344, 64160), (25664, 60860), (27268, 57280), (28640, 54536), (30430, 51328), (32080, 48688), (34085, 45824)]