128357528

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 267036000

約数和(自身を除く): 138678472

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 109, 134, 169, 218, 268, 338, 436, 536, 676, 871, 872, 1352, 1417, 1742, 2197, 2834, 3484, 4394, 5668, 6968, 7303, 8788, 11323, 11336, 14606, 17576, 18421, 22646, 29212, 36842, 45292, 58424, 73684, 90584, 94939, 147199, 147368, 189878, 239473, 294398, 379756, 478946, 588796, 759512, 957892, 1177592, 1234207, 1915784, 2468414, 4936828, 9873656, 16044691, 32089382, 64178764, 128357528]

約数ペア:

[(1, 128357528), (2, 64178764), (4, 32089382), (8, 16044691), (13, 9873656), (26, 4936828), (52, 2468414), (67, 1915784), (104, 1234207), (109, 1177592), (134, 957892), (169, 759512), (218, 588796), (268, 478946), (338, 379756), (436, 294398), (536, 239473), (676, 189878), (871, 147368), (872, 147199), (1352, 94939), (1417, 90584), (1742, 73684), (2197, 58424), (2834, 45292), (3484, 36842), (4394, 29212), (5668, 22646), (6968, 18421), (7303, 17576), (8788, 14606), (11323, 11336)]