678708730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1217}}^1$

素因数の和:1519

約数の個数: 64

約数和(自身を含む): 1448036352

約数和(自身を除く): 769327622

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 257, 310, 434, 514, 1085, 1217, 1285, 1799, 2170, 2434, 2570, 3598, 6085, 7967, 8519, 8995, 12170, 15934, 17038, 17990, 37727, 39835, 42595, 55769, 75454, 79670, 85190, 111538, 188635, 264089, 278845, 312769, 377270, 528178, 557690, 625538, 1320445, 1563845, 2189383, 2640890, 3127690, 4378766, 9695839, 10946915, 19391678, 21893830, 48479195, 67870873, 96958390, 135741746, 339354365, 678708730]

約数ペア:

[(1, 678708730), (2, 339354365), (5, 135741746), (7, 96958390), (10, 67870873), (14, 48479195), (31, 21893830), (35, 19391678), (62, 10946915), (70, 9695839), (155, 4378766), (217, 3127690), (257, 2640890), (310, 2189383), (434, 1563845), (514, 1320445), (1085, 625538), (1217, 557690), (1285, 528178), (1799, 377270), (2170, 312769), (2434, 278845), (2570, 264089), (3598, 188635), (6085, 111538), (7967, 85190), (8519, 79670), (8995, 75454), (12170, 55769), (15934, 42595), (17038, 39835), (17990, 37727)]