64197280

素因数分解:

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

素因数の和:139

約数の個数: 144

約数和(自身を含む): 183181824

約数和(自身を除く): 118984544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 43, 56, 62, 70, 80, 86, 112, 124, 140, 155, 160, 172, 215, 217, 224, 248, 280, 301, 310, 344, 430, 434, 496, 560, 602, 620, 688, 860, 868, 992, 1085, 1120, 1204, 1240, 1333, 1376, 1505, 1720, 1736, 1849, 2170, 2408, 2480, 2666, 3010, 3440, 3472, 3698, 4340, 4816, 4960, 5332, 6020, 6665, 6880, 6944, 7396, 8680, 9245, 9331, 9632, 10664, 12040, 12943, 13330, 14792, 17360, 18490, 18662, 21328, 24080, 25886, 26660, 29584, 34720, 36980, 37324, 42656, 46655, 48160, 51772, 53320, 57319, 59168, 64715, 73960, 74648, 93310, 103544, 106640, 114638, 129430, 147920, 149296, 186620, 207088, 213280, 229276, 258860, 286595, 295840, 298592, 373240, 401233, 414176, 458552, 517720, 573190, 746480, 802466, 917104, 1035440, 1146380, 1492960, 1604932, 1834208, 2006165, 2070880, 2292760, 3209864, 4012330, 4585520, 6419728, 8024660, 9171040, 12839456, 16049320, 32098640, 64197280]

約数ペア:

[(1, 64197280), (2, 32098640), (4, 16049320), (5, 12839456), (7, 9171040), (8, 8024660), (10, 6419728), (14, 4585520), (16, 4012330), (20, 3209864), (28, 2292760), (31, 2070880), (32, 2006165), (35, 1834208), (40, 1604932), (43, 1492960), (56, 1146380), (62, 1035440), (70, 917104), (80, 802466), (86, 746480), (112, 573190), (124, 517720), (140, 458552), (155, 414176), (160, 401233), (172, 373240), (215, 298592), (217, 295840), (224, 286595), (248, 258860), (280, 229276), (301, 213280), (310, 207088), (344, 186620), (430, 149296), (434, 147920), (496, 129430), (560, 114638), (602, 106640), (620, 103544), (688, 93310), (860, 74648), (868, 73960), (992, 64715), (1085, 59168), (1120, 57319), (1204, 53320), (1240, 51772), (1333, 48160), (1376, 46655), (1505, 42656), (1720, 37324), (1736, 36980), (1849, 34720), (2170, 29584), (2408, 26660), (2480, 25886), (2666, 24080), (3010, 21328), (3440, 18662), (3472, 18490), (3698, 17360), (4340, 14792), (4816, 13330), (4960, 12943), (5332, 12040), (6020, 10664), (6665, 9632), (6880, 9331), (6944, 9245), (7396, 8680)]