397788788

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{3319}}^1$

素因数の和:3444

約数の個数: 36

約数和(自身を含む): 743772960

約数和(自身を除く): 345984172

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 361, 722, 1444, 1577, 3154, 3319, 6308, 6638, 13276, 29963, 59926, 63061, 119852, 126122, 252244, 275477, 550954, 1101908, 1198159, 2396318, 4792636, 5234063, 10468126, 20936252, 99447197, 198894394, 397788788]

約数ペア:

[(1, 397788788), (2, 198894394), (4, 99447197), (19, 20936252), (38, 10468126), (76, 5234063), (83, 4792636), (166, 2396318), (332, 1198159), (361, 1101908), (722, 550954), (1444, 275477), (1577, 252244), (3154, 126122), (3319, 119852), (6308, 63061), (6638, 59926), (13276, 29963)]