389638814

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 675164160

約数和(自身を除く): 285525346

約数列:

[1, 2, 19, 23, 31, 38, 46, 62, 73, 146, 197, 394, 437, 589, 713, 874, 1178, 1387, 1426, 1679, 2263, 2774, 3358, 3743, 4526, 4531, 6107, 7486, 9062, 12214, 13547, 14381, 27094, 28762, 31901, 42997, 52049, 63802, 85994, 86089, 104098, 116033, 140461, 172178, 232066, 273239, 280922, 330763, 445811, 546478, 661526, 891622, 988931, 1977862, 2668759, 5337518, 6284497, 8470409, 10253653, 12568994, 16940818, 20507306, 194819407, 389638814]

約数ペア:

[(1, 389638814), (2, 194819407), (19, 20507306), (23, 16940818), (31, 12568994), (38, 10253653), (46, 8470409), (62, 6284497), (73, 5337518), (146, 2668759), (197, 1977862), (394, 988931), (437, 891622), (589, 661526), (713, 546478), (874, 445811), (1178, 330763), (1387, 280922), (1426, 273239), (1679, 232066), (2263, 172178), (2774, 140461), (3358, 116033), (3743, 104098), (4526, 86089), (4531, 85994), (6107, 63802), (7486, 52049), (9062, 42997), (12214, 31901), (13547, 28762), (14381, 27094)]