20328128

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:241

約数の個数: 56

約数和(自身を含む): 42330624

約数和(自身を除く): 22002496

約数列:

[1, 2, 4, 8, 16, 32, 41, 61, 64, 82, 122, 127, 164, 244, 254, 328, 488, 508, 656, 976, 1016, 1312, 1952, 2032, 2501, 2624, 3904, 4064, 5002, 5207, 7747, 8128, 10004, 10414, 15494, 20008, 20828, 30988, 40016, 41656, 61976, 80032, 83312, 123952, 160064, 166624, 247904, 317627, 333248, 495808, 635254, 1270508, 2541016, 5082032, 10164064, 20328128]

約数ペア:

[(1, 20328128), (2, 10164064), (4, 5082032), (8, 2541016), (16, 1270508), (32, 635254), (41, 495808), (61, 333248), (64, 317627), (82, 247904), (122, 166624), (127, 160064), (164, 123952), (244, 83312), (254, 80032), (328, 61976), (488, 41656), (508, 40016), (656, 30988), (976, 20828), (1016, 20008), (1312, 15494), (1952, 10414), (2032, 10004), (2501, 8128), (2624, 7747), (3904, 5207), (4064, 5002)]