212705475

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2447}}^1$

素因数の和:2540

約数の個数: 48

約数和(自身を含む): 376404480

約数和(自身を除く): 163699005

約数列:

[1, 3, 5, 15, 19, 25, 57, 61, 75, 95, 183, 285, 305, 475, 915, 1159, 1425, 1525, 2447, 3477, 4575, 5795, 7341, 12235, 17385, 28975, 36705, 46493, 61175, 86925, 139479, 149267, 183525, 232465, 447801, 697395, 746335, 1162325, 2239005, 2836073, 3486975, 3731675, 8508219, 11195025, 14180365, 42541095, 70901825, 212705475]

約数ペア:

[(1, 212705475), (3, 70901825), (5, 42541095), (15, 14180365), (19, 11195025), (25, 8508219), (57, 3731675), (61, 3486975), (75, 2836073), (95, 2239005), (183, 1162325), (285, 746335), (305, 697395), (475, 447801), (915, 232465), (1159, 183525), (1425, 149267), (1525, 139479), (2447, 86925), (3477, 61175), (4575, 46493), (5795, 36705), (7341, 28975), (12235, 17385)]