28526505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 55910400

約数和(自身を除く): 27383895

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 79, 95, 105, 133, 181, 237, 285, 395, 399, 543, 553, 665, 905, 1185, 1267, 1501, 1659, 1995, 2715, 2765, 3439, 3801, 4503, 6335, 7505, 8295, 10317, 10507, 14299, 17195, 19005, 22515, 24073, 31521, 42897, 51585, 52535, 71495, 72219, 100093, 120365, 157605, 214485, 271681, 300279, 361095, 500465, 815043, 1358405, 1501395, 1901767, 4075215, 5705301, 9508835, 28526505]

約数ペア:

[(1, 28526505), (3, 9508835), (5, 5705301), (7, 4075215), (15, 1901767), (19, 1501395), (21, 1358405), (35, 815043), (57, 500465), (79, 361095), (95, 300279), (105, 271681), (133, 214485), (181, 157605), (237, 120365), (285, 100093), (395, 72219), (399, 71495), (543, 52535), (553, 51585), (665, 42897), (905, 31521), (1185, 24073), (1267, 22515), (1501, 19005), (1659, 17195), (1995, 14299), (2715, 10507), (2765, 10317), (3439, 8295), (3801, 7505), (4503, 6335)]