80878928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 181394640

約数和(自身を除く): 100515712

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 89, 104, 136, 178, 208, 221, 257, 272, 356, 442, 514, 712, 884, 1028, 1157, 1424, 1513, 1768, 2056, 2314, 3026, 3341, 3536, 4112, 4369, 4628, 6052, 6682, 8738, 9256, 12104, 13364, 17476, 18512, 19669, 22873, 24208, 26728, 34952, 39338, 45746, 53456, 56797, 69904, 78676, 91492, 113594, 157352, 182984, 227188, 297349, 314704, 365968, 388841, 454376, 594698, 777682, 908752, 1189396, 1555364, 2378792, 3110728, 4757584, 5054933, 6221456, 10109866, 20219732, 40439464, 80878928]

約数ペア:

[(1, 80878928), (2, 40439464), (4, 20219732), (8, 10109866), (13, 6221456), (16, 5054933), (17, 4757584), (26, 3110728), (34, 2378792), (52, 1555364), (68, 1189396), (89, 908752), (104, 777682), (136, 594698), (178, 454376), (208, 388841), (221, 365968), (257, 314704), (272, 297349), (356, 227188), (442, 182984), (514, 157352), (712, 113594), (884, 91492), (1028, 78676), (1157, 69904), (1424, 56797), (1513, 53456), (1768, 45746), (2056, 39338), (2314, 34952), (3026, 26728), (3341, 24208), (3536, 22873), (4112, 19669), (4369, 18512), (4628, 17476), (6052, 13364), (6682, 12104), (8738, 9256)]