28513576

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 67132800

約数和(自身を除く): 38619224

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 91, 104, 106, 182, 212, 364, 371, 424, 689, 728, 739, 742, 1378, 1478, 1484, 2756, 2956, 2968, 4823, 5173, 5512, 5912, 9607, 9646, 10346, 19214, 19292, 20692, 38428, 38584, 39167, 41384, 67249, 76856, 78334, 134498, 156668, 268996, 274169, 313336, 509171, 537992, 548338, 1018342, 1096676, 2036684, 2193352, 3564197, 4073368, 7128394, 14256788, 28513576]

約数ペア:

[(1, 28513576), (2, 14256788), (4, 7128394), (7, 4073368), (8, 3564197), (13, 2193352), (14, 2036684), (26, 1096676), (28, 1018342), (52, 548338), (53, 537992), (56, 509171), (91, 313336), (104, 274169), (106, 268996), (182, 156668), (212, 134498), (364, 78334), (371, 76856), (424, 67249), (689, 41384), (728, 39167), (739, 38584), (742, 38428), (1378, 20692), (1478, 19292), (1484, 19214), (2756, 10346), (2956, 9646), (2968, 9607), (4823, 5912), (5173, 5512)]