678674320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2089}}^1$

素因数の和:2264

約数の個数: 80

約数和(自身を含む): 1642037760

約数和(自身を除く): 963363440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 131, 155, 248, 262, 310, 496, 524, 620, 655, 1048, 1240, 1310, 2089, 2096, 2480, 2620, 4061, 4178, 5240, 8122, 8356, 10445, 10480, 16244, 16712, 20305, 20890, 32488, 33424, 40610, 41780, 64759, 64976, 81220, 83560, 129518, 162440, 167120, 259036, 273659, 323795, 324880, 518072, 547318, 647590, 1036144, 1094636, 1295180, 1368295, 2189272, 2590360, 2736590, 4378544, 5180720, 5473180, 8483429, 10946360, 16966858, 21892720, 33933716, 42417145, 67867432, 84834290, 135734864, 169668580, 339337160, 678674320]

約数ペア:

[(1, 678674320), (2, 339337160), (4, 169668580), (5, 135734864), (8, 84834290), (10, 67867432), (16, 42417145), (20, 33933716), (31, 21892720), (40, 16966858), (62, 10946360), (80, 8483429), (124, 5473180), (131, 5180720), (155, 4378544), (248, 2736590), (262, 2590360), (310, 2189272), (496, 1368295), (524, 1295180), (620, 1094636), (655, 1036144), (1048, 647590), (1240, 547318), (1310, 518072), (2089, 324880), (2096, 323795), (2480, 273659), (2620, 259036), (4061, 167120), (4178, 162440), (5240, 129518), (8122, 83560), (8356, 81220), (10445, 64976), (10480, 64759), (16244, 41780), (16712, 40610), (20305, 33424), (20890, 32488)]