51984640

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2389}}^1$

素因数の和:2427

約数の個数: 72

約数和(自身を含む): 131899320

約数和(自身を除く): 79914680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2389, 2720, 4352, 4778, 5440, 9556, 10880, 11945, 19112, 21760, 23890, 38224, 40613, 47780, 76448, 81226, 95560, 152896, 162452, 191120, 203065, 305792, 324904, 382240, 406130, 611584, 649808, 764480, 812260, 1299616, 1528960, 1624520, 2599232, 3057920, 3249040, 5198464, 6498080, 10396928, 12996160, 25992320, 51984640]

約数ペア:

[(1, 51984640), (2, 25992320), (4, 12996160), (5, 10396928), (8, 6498080), (10, 5198464), (16, 3249040), (17, 3057920), (20, 2599232), (32, 1624520), (34, 1528960), (40, 1299616), (64, 812260), (68, 764480), (80, 649808), (85, 611584), (128, 406130), (136, 382240), (160, 324904), (170, 305792), (256, 203065), (272, 191120), (320, 162452), (340, 152896), (544, 95560), (640, 81226), (680, 76448), (1088, 47780), (1280, 40613), (1360, 38224), (2176, 23890), (2389, 21760), (2720, 19112), (4352, 11945), (4778, 10880), (5440, 9556)]