129809320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 302601600

約数和(自身を除く): 172792280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 139, 148, 185, 278, 296, 370, 556, 631, 695, 740, 1112, 1262, 1390, 1480, 2524, 2780, 3155, 5048, 5143, 5560, 6310, 10286, 12620, 20572, 23347, 25240, 25715, 41144, 46694, 51430, 87709, 93388, 102860, 116735, 175418, 186776, 205720, 233470, 350836, 438545, 466940, 701672, 877090, 933880, 1754180, 3245233, 3508360, 6490466, 12980932, 16226165, 25961864, 32452330, 64904660, 129809320]

約数ペア:

[(1, 129809320), (2, 64904660), (4, 32452330), (5, 25961864), (8, 16226165), (10, 12980932), (20, 6490466), (37, 3508360), (40, 3245233), (74, 1754180), (139, 933880), (148, 877090), (185, 701672), (278, 466940), (296, 438545), (370, 350836), (556, 233470), (631, 205720), (695, 186776), (740, 175418), (1112, 116735), (1262, 102860), (1390, 93388), (1480, 87709), (2524, 51430), (2780, 46694), (3155, 41144), (5048, 25715), (5143, 25240), (5560, 23347), (6310, 20572), (10286, 12620)]