28465528

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 66870720

約数和(自身を除く): 38405192

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 61, 91, 104, 122, 182, 244, 364, 427, 488, 641, 728, 793, 854, 1282, 1586, 1708, 2564, 3172, 3416, 4487, 5128, 5551, 6344, 8333, 8974, 11102, 16666, 17948, 22204, 33332, 35896, 39101, 44408, 58331, 66664, 78202, 116662, 156404, 233324, 273707, 312808, 466648, 508313, 547414, 1016626, 1094828, 2033252, 2189656, 3558191, 4066504, 7116382, 14232764, 28465528]

約数ペア:

[(1, 28465528), (2, 14232764), (4, 7116382), (7, 4066504), (8, 3558191), (13, 2189656), (14, 2033252), (26, 1094828), (28, 1016626), (52, 547414), (56, 508313), (61, 466648), (91, 312808), (104, 273707), (122, 233324), (182, 156404), (244, 116662), (364, 78202), (427, 66664), (488, 58331), (641, 44408), (728, 39101), (793, 35896), (854, 33332), (1282, 22204), (1586, 17948), (1708, 16666), (2564, 11102), (3172, 8974), (3416, 8333), (4487, 6344), (5128, 5551)]