20275736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 44620800

約数和(自身を除く): 24345064

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 247, 248, 331, 403, 494, 589, 662, 806, 988, 1178, 1324, 1612, 1976, 2356, 2648, 3224, 4303, 4712, 6289, 7657, 8606, 10261, 12578, 15314, 17212, 20522, 25156, 30628, 34424, 41044, 50312, 61256, 81757, 82088, 133393, 163514, 194959, 266786, 327028, 389918, 533572, 654056, 779836, 1067144, 1559672, 2534467, 5068934, 10137868, 20275736]

約数ペア:

[(1, 20275736), (2, 10137868), (4, 5068934), (8, 2534467), (13, 1559672), (19, 1067144), (26, 779836), (31, 654056), (38, 533572), (52, 389918), (62, 327028), (76, 266786), (104, 194959), (124, 163514), (152, 133393), (247, 82088), (248, 81757), (331, 61256), (403, 50312), (494, 41044), (589, 34424), (662, 30628), (806, 25156), (988, 20522), (1178, 17212), (1324, 15314), (1612, 12578), (1976, 10261), (2356, 8606), (2648, 7657), (3224, 6289), (4303, 4712)]