28774564

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 65959488

約数和(自身を除く): 37184924

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 49, 52, 91, 92, 98, 161, 182, 196, 299, 322, 364, 491, 598, 637, 644, 982, 1127, 1196, 1274, 1964, 2093, 2254, 2548, 3437, 4186, 4508, 6383, 6874, 8372, 11293, 12766, 13748, 14651, 22586, 24059, 25532, 29302, 44681, 45172, 48118, 58604, 79051, 89362, 96236, 146809, 158102, 178724, 293618, 312767, 316204, 553357, 587236, 625534, 1027663, 1106714, 1251068, 2055326, 2213428, 4110652, 7193641, 14387282, 28774564]

約数ペア:

[(1, 28774564), (2, 14387282), (4, 7193641), (7, 4110652), (13, 2213428), (14, 2055326), (23, 1251068), (26, 1106714), (28, 1027663), (46, 625534), (49, 587236), (52, 553357), (91, 316204), (92, 312767), (98, 293618), (161, 178724), (182, 158102), (196, 146809), (299, 96236), (322, 89362), (364, 79051), (491, 58604), (598, 48118), (637, 45172), (644, 44681), (982, 29302), (1127, 25532), (1196, 24059), (1274, 22586), (1964, 14651), (2093, 13748), (2254, 12766), (2548, 11293), (3437, 8372), (4186, 6874), (4508, 6383)]