655669840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:441

約数の個数: 160

約数和(自身を含む): 1817026560

約数和(自身を除く): 1161356720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 179, 211, 217, 248, 280, 310, 358, 422, 434, 496, 560, 620, 716, 844, 868, 895, 1055, 1085, 1240, 1253, 1432, 1477, 1688, 1736, 1790, 2110, 2170, 2480, 2506, 2864, 2954, 3376, 3472, 3580, 4220, 4340, 5012, 5549, 5908, 6265, 6541, 7160, 7385, 8440, 8680, 10024, 11098, 11816, 12530, 13082, 14320, 14770, 16880, 17360, 20048, 22196, 23632, 25060, 26164, 27745, 29540, 32705, 37769, 38843, 44392, 45787, 50120, 52328, 55490, 59080, 65410, 75538, 77686, 88784, 91574, 100240, 104656, 110980, 118160, 130820, 151076, 155372, 183148, 188845, 194215, 221960, 228935, 261640, 264383, 302152, 310744, 366296, 377690, 388430, 443920, 457870, 523280, 528766, 604304, 621488, 732592, 755380, 776860, 915740, 1057532, 1170839, 1321915, 1510760, 1553720, 1831480, 2115064, 2341678, 2643830, 3021520, 3107440, 3662960, 4230128, 4683356, 5287660, 5854195, 8195873, 9366712, 10575320, 11708390, 16391746, 18733424, 21150640, 23416780, 32783492, 40979365, 46833560, 65566984, 81958730, 93667120, 131133968, 163917460, 327834920, 655669840]

約数ペア:

[(1, 655669840), (2, 327834920), (4, 163917460), (5, 131133968), (7, 93667120), (8, 81958730), (10, 65566984), (14, 46833560), (16, 40979365), (20, 32783492), (28, 23416780), (31, 21150640), (35, 18733424), (40, 16391746), (56, 11708390), (62, 10575320), (70, 9366712), (80, 8195873), (112, 5854195), (124, 5287660), (140, 4683356), (155, 4230128), (179, 3662960), (211, 3107440), (217, 3021520), (248, 2643830), (280, 2341678), (310, 2115064), (358, 1831480), (422, 1553720), (434, 1510760), (496, 1321915), (560, 1170839), (620, 1057532), (716, 915740), (844, 776860), (868, 755380), (895, 732592), (1055, 621488), (1085, 604304), (1240, 528766), (1253, 523280), (1432, 457870), (1477, 443920), (1688, 388430), (1736, 377690), (1790, 366296), (2110, 310744), (2170, 302152), (2480, 264383), (2506, 261640), (2864, 228935), (2954, 221960), (3376, 194215), (3472, 188845), (3580, 183148), (4220, 155372), (4340, 151076), (5012, 130820), (5549, 118160), (5908, 110980), (6265, 104656), (6541, 100240), (7160, 91574), (7385, 88784), (8440, 77686), (8680, 75538), (10024, 65410), (11098, 59080), (11816, 55490), (12530, 52328), (13082, 50120), (14320, 45787), (14770, 44392), (16880, 38843), (17360, 37769), (20048, 32705), (22196, 29540), (23632, 27745), (25060, 26164)]