68719456

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 72

約数和(自身を含む): 149139144

約数和(自身を除く): 80419688

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 131, 169, 194, 208, 262, 338, 388, 416, 524, 676, 776, 1048, 1261, 1352, 1552, 1703, 2096, 2522, 2704, 3104, 3406, 4192, 5044, 5408, 6812, 10088, 12707, 13624, 16393, 20176, 22139, 25414, 27248, 32786, 40352, 44278, 50828, 54496, 65572, 88556, 101656, 131144, 165191, 177112, 203312, 262288, 330382, 354224, 406624, 524576, 660764, 708448, 1321528, 2147483, 2643056, 4294966, 5286112, 8589932, 17179864, 34359728, 68719456]

約数ペア:

[(1, 68719456), (2, 34359728), (4, 17179864), (8, 8589932), (13, 5286112), (16, 4294966), (26, 2643056), (32, 2147483), (52, 1321528), (97, 708448), (104, 660764), (131, 524576), (169, 406624), (194, 354224), (208, 330382), (262, 262288), (338, 203312), (388, 177112), (416, 165191), (524, 131144), (676, 101656), (776, 88556), (1048, 65572), (1261, 54496), (1352, 50828), (1552, 44278), (1703, 40352), (2096, 32786), (2522, 27248), (2704, 25414), (3104, 22139), (3406, 20176), (4192, 16393), (5044, 13624), (5408, 12707), (6812, 10088)]