157507280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:305

約数の個数: 160

約数和(自身を含む): 444162048

約数和(自身を除く): 286654768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 43, 56, 62, 70, 80, 86, 112, 124, 140, 155, 172, 211, 215, 217, 248, 280, 301, 310, 344, 422, 430, 434, 496, 560, 602, 620, 688, 844, 860, 868, 1055, 1085, 1204, 1240, 1333, 1477, 1505, 1688, 1720, 1736, 2110, 2170, 2408, 2480, 2666, 2954, 3010, 3376, 3440, 3472, 4220, 4340, 4816, 5332, 5908, 6020, 6541, 6665, 7385, 8440, 8680, 9073, 9331, 10664, 11816, 12040, 13082, 13330, 14770, 16880, 17360, 18146, 18662, 21328, 23632, 24080, 26164, 26660, 29540, 32705, 36292, 37324, 45365, 45787, 46655, 52328, 53320, 59080, 63511, 65410, 72584, 74648, 90730, 91574, 93310, 104656, 106640, 118160, 127022, 130820, 145168, 149296, 181460, 183148, 186620, 228935, 254044, 261640, 281263, 317555, 362920, 366296, 373240, 457870, 508088, 523280, 562526, 635110, 725840, 732592, 746480, 915740, 1016176, 1125052, 1270220, 1406315, 1831480, 1968841, 2250104, 2540440, 2812630, 3662960, 3937682, 4500208, 5080880, 5625260, 7875364, 9844205, 11250520, 15750728, 19688410, 22501040, 31501456, 39376820, 78753640, 157507280]

約数ペア:

[(1, 157507280), (2, 78753640), (4, 39376820), (5, 31501456), (7, 22501040), (8, 19688410), (10, 15750728), (14, 11250520), (16, 9844205), (20, 7875364), (28, 5625260), (31, 5080880), (35, 4500208), (40, 3937682), (43, 3662960), (56, 2812630), (62, 2540440), (70, 2250104), (80, 1968841), (86, 1831480), (112, 1406315), (124, 1270220), (140, 1125052), (155, 1016176), (172, 915740), (211, 746480), (215, 732592), (217, 725840), (248, 635110), (280, 562526), (301, 523280), (310, 508088), (344, 457870), (422, 373240), (430, 366296), (434, 362920), (496, 317555), (560, 281263), (602, 261640), (620, 254044), (688, 228935), (844, 186620), (860, 183148), (868, 181460), (1055, 149296), (1085, 145168), (1204, 130820), (1240, 127022), (1333, 118160), (1477, 106640), (1505, 104656), (1688, 93310), (1720, 91574), (1736, 90730), (2110, 74648), (2170, 72584), (2408, 65410), (2480, 63511), (2666, 59080), (2954, 53320), (3010, 52328), (3376, 46655), (3440, 45787), (3472, 45365), (4220, 37324), (4340, 36292), (4816, 32705), (5332, 29540), (5908, 26660), (6020, 26164), (6541, 24080), (6665, 23632), (7385, 21328), (8440, 18662), (8680, 18146), (9073, 17360), (9331, 16880), (10664, 14770), (11816, 13330), (12040, 13082)]