78753640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 214917120

約数和(自身を除く): 136163480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 43, 56, 62, 70, 86, 124, 140, 155, 172, 211, 215, 217, 248, 280, 301, 310, 344, 422, 430, 434, 602, 620, 844, 860, 868, 1055, 1085, 1204, 1240, 1333, 1477, 1505, 1688, 1720, 1736, 2110, 2170, 2408, 2666, 2954, 3010, 4220, 4340, 5332, 5908, 6020, 6541, 6665, 7385, 8440, 8680, 9073, 9331, 10664, 11816, 12040, 13082, 13330, 14770, 18146, 18662, 26164, 26660, 29540, 32705, 36292, 37324, 45365, 45787, 46655, 52328, 53320, 59080, 63511, 65410, 72584, 74648, 90730, 91574, 93310, 127022, 130820, 181460, 183148, 186620, 228935, 254044, 261640, 281263, 317555, 362920, 366296, 373240, 457870, 508088, 562526, 635110, 915740, 1125052, 1270220, 1406315, 1831480, 1968841, 2250104, 2540440, 2812630, 3937682, 5625260, 7875364, 9844205, 11250520, 15750728, 19688410, 39376820, 78753640]

約数ペア:

[(1, 78753640), (2, 39376820), (4, 19688410), (5, 15750728), (7, 11250520), (8, 9844205), (10, 7875364), (14, 5625260), (20, 3937682), (28, 2812630), (31, 2540440), (35, 2250104), (40, 1968841), (43, 1831480), (56, 1406315), (62, 1270220), (70, 1125052), (86, 915740), (124, 635110), (140, 562526), (155, 508088), (172, 457870), (211, 373240), (215, 366296), (217, 362920), (248, 317555), (280, 281263), (301, 261640), (310, 254044), (344, 228935), (422, 186620), (430, 183148), (434, 181460), (602, 130820), (620, 127022), (844, 93310), (860, 91574), (868, 90730), (1055, 74648), (1085, 72584), (1204, 65410), (1240, 63511), (1333, 59080), (1477, 53320), (1505, 52328), (1688, 46655), (1720, 45787), (1736, 45365), (2110, 37324), (2170, 36292), (2408, 32705), (2666, 29540), (2954, 26660), (3010, 26164), (4220, 18662), (4340, 18146), (5332, 14770), (5908, 13330), (6020, 13082), (6541, 12040), (6665, 11816), (7385, 10664), (8440, 9331), (8680, 9073)]