516776720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:684

約数の個数: 80

約数和(自身を含む): 1224765360

約数和(自身を除く): 707988640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 181, 356, 362, 401, 445, 712, 724, 802, 890, 905, 1424, 1448, 1604, 1780, 1810, 2005, 2896, 3208, 3560, 3620, 4010, 6416, 7120, 7240, 8020, 14480, 16040, 16109, 32080, 32218, 35689, 64436, 71378, 72581, 80545, 128872, 142756, 145162, 161090, 178445, 257744, 285512, 290324, 322180, 356890, 362905, 571024, 580648, 644360, 713780, 725810, 1161296, 1288720, 1427560, 1451620, 2855120, 2903240, 5806480, 6459709, 12919418, 25838836, 32298545, 51677672, 64597090, 103355344, 129194180, 258388360, 516776720]

約数ペア:

[(1, 516776720), (2, 258388360), (4, 129194180), (5, 103355344), (8, 64597090), (10, 51677672), (16, 32298545), (20, 25838836), (40, 12919418), (80, 6459709), (89, 5806480), (178, 2903240), (181, 2855120), (356, 1451620), (362, 1427560), (401, 1288720), (445, 1161296), (712, 725810), (724, 713780), (802, 644360), (890, 580648), (905, 571024), (1424, 362905), (1448, 356890), (1604, 322180), (1780, 290324), (1810, 285512), (2005, 257744), (2896, 178445), (3208, 161090), (3560, 145162), (3620, 142756), (4010, 128872), (6416, 80545), (7120, 72581), (7240, 71378), (8020, 64436), (14480, 35689), (16040, 32218), (16109, 32080)]