260521520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:443

約数の個数: 160

約数和(自身を含む): 733286400

約数和(自身を除く): 472764880

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, 215, 217, 248, 280, 301, 310, 344, 349, 430, 434, 496, 560, 602, 620, 688, 698, 860, 868, 1085, 1204, 1240, 1333, 1396, 1505, 1720, 1736, 1745, 2170, 2408, 2443, 2480, 2666, 2792, 3010, 3440, 3472, 3490, 4340, 4816, 4886, 5332, 5584, 6020, 6665, 6980, 8680, 9331, 9772, 10664, 10819, 12040, 12215, 13330, 13960, 15007, 17360, 18662, 19544, 21328, 21638, 24080, 24430, 26660, 27920, 30014, 37324, 39088, 43276, 46655, 48860, 53320, 54095, 60028, 74648, 75035, 75733, 86552, 93310, 97720, 105049, 106640, 108190, 120056, 149296, 150070, 151466, 173104, 186620, 195440, 210098, 216380, 240112, 300140, 302932, 373240, 378665, 420196, 432760, 465217, 525245, 600280, 605864, 746480, 757330, 840392, 865520, 930434, 1050490, 1200560, 1211728, 1514660, 1680784, 1860868, 2100980, 2326085, 3029320, 3256519, 3721736, 4201960, 4652170, 6058640, 6513038, 7443472, 8403920, 9304340, 13026076, 16282595, 18608680, 26052152, 32565190, 37217360, 52104304, 65130380, 130260760, 260521520]

約数ペア:

[(1, 260521520), (2, 130260760), (4, 65130380), (5, 52104304), (7, 37217360), (8, 32565190), (10, 26052152), (14, 18608680), (16, 16282595), (20, 13026076), (28, 9304340), (31, 8403920), (35, 7443472), (40, 6513038), (43, 6058640), (56, 4652170), (62, 4201960), (70, 3721736), (80, 3256519), (86, 3029320), (112, 2326085), (124, 2100980), (140, 1860868), (155, 1680784), (172, 1514660), (215, 1211728), (217, 1200560), (248, 1050490), (280, 930434), (301, 865520), (310, 840392), (344, 757330), (349, 746480), (430, 605864), (434, 600280), (496, 525245), (560, 465217), (602, 432760), (620, 420196), (688, 378665), (698, 373240), (860, 302932), (868, 300140), (1085, 240112), (1204, 216380), (1240, 210098), (1333, 195440), (1396, 186620), (1505, 173104), (1720, 151466), (1736, 150070), (1745, 149296), (2170, 120056), (2408, 108190), (2443, 106640), (2480, 105049), (2666, 97720), (2792, 93310), (3010, 86552), (3440, 75733), (3472, 75035), (3490, 74648), (4340, 60028), (4816, 54095), (4886, 53320), (5332, 48860), (5584, 46655), (6020, 43276), (6665, 39088), (6980, 37324), (8680, 30014), (9331, 27920), (9772, 26660), (10664, 24430), (10819, 24080), (12040, 21638), (12215, 21328), (13330, 19544), (13960, 18662), (15007, 17360)]