253095440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{613}}^1$

素因数の和:1036

約数の個数: 80

約数和(自身を含む): 636344688

約数和(自身を除く): 383249248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 397, 520, 613, 794, 1040, 1226, 1588, 1985, 2452, 3065, 3176, 3970, 4904, 5161, 6130, 6352, 7940, 7969, 9808, 10322, 12260, 15880, 15938, 20644, 24520, 25805, 31760, 31876, 39845, 41288, 49040, 51610, 63752, 79690, 82576, 103220, 127504, 159380, 206440, 243361, 318760, 412880, 486722, 637520, 973444, 1216805, 1946888, 2433610, 3163693, 3893776, 4867220, 6327386, 9734440, 12654772, 15818465, 19468880, 25309544, 31636930, 50619088, 63273860, 126547720, 253095440]

約数ペア:

[(1, 253095440), (2, 126547720), (4, 63273860), (5, 50619088), (8, 31636930), (10, 25309544), (13, 19468880), (16, 15818465), (20, 12654772), (26, 9734440), (40, 6327386), (52, 4867220), (65, 3893776), (80, 3163693), (104, 2433610), (130, 1946888), (208, 1216805), (260, 973444), (397, 637520), (520, 486722), (613, 412880), (794, 318760), (1040, 243361), (1226, 206440), (1588, 159380), (1985, 127504), (2452, 103220), (3065, 82576), (3176, 79690), (3970, 63752), (4904, 51610), (5161, 49040), (6130, 41288), (6352, 39845), (7940, 31876), (7969, 31760), (9808, 25805), (10322, 24520), (12260, 20644), (15880, 15938)]