25372828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 51281440

約数和(自身を除く): 25908612

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 61, 76, 122, 244, 247, 421, 494, 793, 842, 988, 1159, 1586, 1684, 2318, 3172, 4636, 5473, 7999, 10946, 15067, 15998, 21892, 25681, 30134, 31996, 51362, 60268, 102724, 103987, 207974, 333853, 415948, 487939, 667706, 975878, 1335412, 1951756, 6343207, 12686414, 25372828]

約数ペア:

[(1, 25372828), (2, 12686414), (4, 6343207), (13, 1951756), (19, 1335412), (26, 975878), (38, 667706), (52, 487939), (61, 415948), (76, 333853), (122, 207974), (244, 103987), (247, 102724), (421, 60268), (494, 51362), (793, 31996), (842, 30134), (988, 25681), (1159, 21892), (1586, 15998), (1684, 15067), (2318, 10946), (3172, 7999), (4636, 5473)]