389662754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 687039360

約数和(自身を除く): 297376606

約数列:

[1, 2, 13, 19, 26, 38, 61, 67, 122, 134, 193, 247, 386, 494, 793, 871, 1159, 1273, 1586, 1742, 2318, 2509, 2546, 3667, 4087, 5018, 7334, 8174, 11773, 12931, 15067, 16549, 23546, 25862, 30134, 33098, 47671, 53131, 77653, 95342, 106262, 153049, 155306, 168103, 223687, 245689, 306098, 336206, 447374, 491378, 788791, 1009489, 1577582, 2018978, 2907931, 3193957, 5815862, 6387914, 10254283, 14987029, 20508566, 29974058, 194831377, 389662754]

約数ペア:

[(1, 389662754), (2, 194831377), (13, 29974058), (19, 20508566), (26, 14987029), (38, 10254283), (61, 6387914), (67, 5815862), (122, 3193957), (134, 2907931), (193, 2018978), (247, 1577582), (386, 1009489), (494, 788791), (793, 491378), (871, 447374), (1159, 336206), (1273, 306098), (1586, 245689), (1742, 223687), (2318, 168103), (2509, 155306), (2546, 153049), (3667, 106262), (4087, 95342), (5018, 77653), (7334, 53131), (8174, 47671), (11773, 33098), (12931, 30134), (15067, 25862), (16549, 23546)]