84845980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{971}}^1$

素因数の和:1254

約数の個数: 48

約数和(自身を含む): 189586656

約数和(自身を除く): 104740676

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 257, 340, 514, 971, 1028, 1285, 1942, 2570, 3884, 4369, 4855, 5140, 8738, 9710, 16507, 17476, 19420, 21845, 33014, 43690, 66028, 82535, 87380, 165070, 249547, 330140, 499094, 998188, 1247735, 2495470, 4242299, 4990940, 8484598, 16969196, 21211495, 42422990, 84845980]

約数ペア:

[(1, 84845980), (2, 42422990), (4, 21211495), (5, 16969196), (10, 8484598), (17, 4990940), (20, 4242299), (34, 2495470), (68, 1247735), (85, 998188), (170, 499094), (257, 330140), (340, 249547), (514, 165070), (971, 87380), (1028, 82535), (1285, 66028), (1942, 43690), (2570, 33014), (3884, 21845), (4369, 19420), (4855, 17476), (5140, 16507), (8738, 9710)]