28460145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 54558720

約数和(自身を除く): 26098575

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 73, 79, 105, 141, 219, 235, 237, 329, 365, 395, 511, 553, 705, 987, 1095, 1185, 1533, 1645, 1659, 2555, 2765, 3431, 3713, 4935, 5767, 7665, 8295, 10293, 11139, 17155, 17301, 18565, 24017, 25991, 28835, 40369, 51465, 55695, 72051, 77973, 86505, 120085, 121107, 129955, 201845, 271049, 360255, 389865, 605535, 813147, 1355245, 1897343, 4065735, 5692029, 9486715, 28460145]

約数ペア:

[(1, 28460145), (3, 9486715), (5, 5692029), (7, 4065735), (15, 1897343), (21, 1355245), (35, 813147), (47, 605535), (73, 389865), (79, 360255), (105, 271049), (141, 201845), (219, 129955), (235, 121107), (237, 120085), (329, 86505), (365, 77973), (395, 72051), (511, 55695), (553, 51465), (705, 40369), (987, 28835), (1095, 25991), (1185, 24017), (1533, 18565), (1645, 17301), (1659, 17155), (2555, 11139), (2765, 10293), (3431, 8295), (3713, 7665), (4935, 5767)]