28193655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 26549385

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 47, 87, 105, 141, 145, 197, 203, 235, 329, 435, 591, 609, 705, 985, 987, 1015, 1363, 1379, 1645, 2955, 3045, 4089, 4137, 4935, 5713, 6815, 6895, 9259, 9541, 17139, 20445, 20685, 27777, 28565, 28623, 39991, 46295, 47705, 64813, 85695, 119973, 138885, 143115, 194439, 199955, 268511, 324065, 599865, 805533, 972195, 1342555, 1879577, 4027665, 5638731, 9397885, 28193655]

約数ペア:

[(1, 28193655), (3, 9397885), (5, 5638731), (7, 4027665), (15, 1879577), (21, 1342555), (29, 972195), (35, 805533), (47, 599865), (87, 324065), (105, 268511), (141, 199955), (145, 194439), (197, 143115), (203, 138885), (235, 119973), (329, 85695), (435, 64813), (591, 47705), (609, 46295), (705, 39991), (985, 28623), (987, 28565), (1015, 27777), (1363, 20685), (1379, 20445), (1645, 17139), (2955, 9541), (3045, 9259), (4089, 6895), (4137, 6815), (4935, 5713)]