398705120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11923}}^1$

素因数の和:11968

約数の個数: 96

約数和(自身を含む): 1081745280

約数和(自身を除く): 683040160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 380, 418, 440, 608, 760, 836, 880, 1045, 1520, 1672, 1760, 2090, 3040, 3344, 4180, 6688, 8360, 11923, 16720, 23846, 33440, 47692, 59615, 95384, 119230, 131153, 190768, 226537, 238460, 262306, 381536, 453074, 476920, 524612, 655765, 906148, 953840, 1049224, 1132685, 1311530, 1812296, 1907680, 2098448, 2265370, 2491907, 2623060, 3624592, 4196896, 4530740, 4983814, 5246120, 7249184, 9061480, 9967628, 10492240, 12459535, 18122960, 19935256, 20984480, 24919070, 36245920, 39870512, 49838140, 79741024, 99676280, 199352560, 398705120]

約数ペア:

[(1, 398705120), (2, 199352560), (4, 99676280), (5, 79741024), (8, 49838140), (10, 39870512), (11, 36245920), (16, 24919070), (19, 20984480), (20, 19935256), (22, 18122960), (32, 12459535), (38, 10492240), (40, 9967628), (44, 9061480), (55, 7249184), (76, 5246120), (80, 4983814), (88, 4530740), (95, 4196896), (110, 3624592), (152, 2623060), (160, 2491907), (176, 2265370), (190, 2098448), (209, 1907680), (220, 1812296), (304, 1311530), (352, 1132685), (380, 1049224), (418, 953840), (440, 906148), (608, 655765), (760, 524612), (836, 476920), (880, 453074), (1045, 381536), (1520, 262306), (1672, 238460), (1760, 226537), (2090, 190768), (3040, 131153), (3344, 119230), (4180, 95384), (6688, 59615), (8360, 47692), (11923, 33440), (16720, 23846)]