213328504

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 435916800

約数和(自身を除く): 222588296

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 127, 152, 172, 254, 257, 344, 508, 514, 817, 1016, 1028, 1634, 2056, 2413, 3268, 4826, 4883, 5461, 6536, 9652, 9766, 10922, 11051, 19304, 19532, 21844, 22102, 32639, 39064, 43688, 44204, 65278, 88408, 103759, 130556, 207518, 209969, 261112, 415036, 419938, 620141, 830072, 839876, 1240282, 1403477, 1679752, 2480564, 2806954, 4961128, 5613908, 11227816, 26666063, 53332126, 106664252, 213328504]

約数ペア:

[(1, 213328504), (2, 106664252), (4, 53332126), (8, 26666063), (19, 11227816), (38, 5613908), (43, 4961128), (76, 2806954), (86, 2480564), (127, 1679752), (152, 1403477), (172, 1240282), (254, 839876), (257, 830072), (344, 620141), (508, 419938), (514, 415036), (817, 261112), (1016, 209969), (1028, 207518), (1634, 130556), (2056, 103759), (2413, 88408), (3268, 65278), (4826, 44204), (4883, 43688), (5461, 39064), (6536, 32639), (9652, 22102), (9766, 21844), (10922, 19532), (11051, 19304)]