64921568

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 131866560

約数和(自身を除く): 66944992

約数列:

[1, 2, 4, 8, 16, 32, 61, 79, 122, 158, 244, 316, 421, 488, 632, 842, 976, 1264, 1684, 1952, 2528, 3368, 4819, 6736, 9638, 13472, 19276, 25681, 33259, 38552, 51362, 66518, 77104, 102724, 133036, 154208, 205448, 266072, 410896, 532144, 821792, 1064288, 2028799, 4057598, 8115196, 16230392, 32460784, 64921568]

約数ペア:

[(1, 64921568), (2, 32460784), (4, 16230392), (8, 8115196), (16, 4057598), (32, 2028799), (61, 1064288), (79, 821792), (122, 532144), (158, 410896), (244, 266072), (316, 205448), (421, 154208), (488, 133036), (632, 102724), (842, 77104), (976, 66518), (1264, 51362), (1684, 38552), (1952, 33259), (2528, 25681), (3368, 19276), (4819, 13472), (6736, 9638)]