202609720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 467107200

約数和(自身を除く): 264497480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 97, 158, 194, 316, 388, 395, 485, 632, 661, 776, 790, 970, 1322, 1580, 1940, 2644, 3160, 3305, 3880, 5288, 6610, 7663, 13220, 15326, 26440, 30652, 38315, 52219, 61304, 64117, 76630, 104438, 128234, 153260, 208876, 256468, 261095, 306520, 320585, 417752, 512936, 522190, 641170, 1044380, 1282340, 2088760, 2564680, 5065243, 10130486, 20260972, 25326215, 40521944, 50652430, 101304860, 202609720]

約数ペア:

[(1, 202609720), (2, 101304860), (4, 50652430), (5, 40521944), (8, 25326215), (10, 20260972), (20, 10130486), (40, 5065243), (79, 2564680), (97, 2088760), (158, 1282340), (194, 1044380), (316, 641170), (388, 522190), (395, 512936), (485, 417752), (632, 320585), (661, 306520), (776, 261095), (790, 256468), (970, 208876), (1322, 153260), (1580, 128234), (1940, 104438), (2644, 76630), (3160, 64117), (3305, 61304), (3880, 52219), (5288, 38315), (6610, 30652), (7663, 26440), (13220, 15326)]