28465675

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 14388725

約数列:

[1, 5, 7, 25, 29, 35, 71, 79, 145, 175, 203, 355, 395, 497, 553, 725, 1015, 1775, 1975, 2059, 2291, 2485, 2765, 5075, 5609, 10295, 11455, 12425, 13825, 14413, 16037, 28045, 39263, 51475, 57275, 72065, 80185, 140225, 162661, 196315, 360325, 400925, 813305, 981575, 1138627, 4066525, 5693135, 28465675]

約数ペア:

[(1, 28465675), (5, 5693135), (7, 4066525), (25, 1138627), (29, 981575), (35, 813305), (71, 400925), (79, 360325), (145, 196315), (175, 162661), (203, 140225), (355, 80185), (395, 72065), (497, 57275), (553, 51475), (725, 39263), (1015, 28045), (1775, 16037), (1975, 14413), (2059, 13825), (2291, 12425), (2485, 11455), (2765, 10295), (5075, 5609)]