81312512

素因数分解:

$2^8\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 170322432

約数和(自身を除く): 89009920

約数列:

[1, 2, 4, 8, 16, 32, 41, 61, 64, 82, 122, 127, 128, 164, 244, 254, 256, 328, 488, 508, 656, 976, 1016, 1312, 1952, 2032, 2501, 2624, 3904, 4064, 5002, 5207, 5248, 7747, 7808, 8128, 10004, 10414, 10496, 15494, 15616, 16256, 20008, 20828, 30988, 32512, 40016, 41656, 61976, 80032, 83312, 123952, 160064, 166624, 247904, 317627, 320128, 333248, 495808, 635254, 640256, 666496, 991616, 1270508, 1332992, 1983232, 2541016, 5082032, 10164064, 20328128, 40656256, 81312512]

約数ペア:

[(1, 81312512), (2, 40656256), (4, 20328128), (8, 10164064), (16, 5082032), (32, 2541016), (41, 1983232), (61, 1332992), (64, 1270508), (82, 991616), (122, 666496), (127, 640256), (128, 635254), (164, 495808), (244, 333248), (254, 320128), (256, 317627), (328, 247904), (488, 166624), (508, 160064), (656, 123952), (976, 83312), (1016, 80032), (1312, 61976), (1952, 41656), (2032, 40016), (2501, 32512), (2624, 30988), (3904, 20828), (4064, 20008), (5002, 16256), (5207, 15616), (5248, 15494), (7747, 10496), (7808, 10414), (8128, 10004)]