51527320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 125737920

約数和(自身を除く): 74210600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 394, 503, 520, 788, 985, 1006, 1576, 1970, 2012, 2515, 2561, 3940, 4024, 5030, 5122, 6539, 7880, 10060, 10244, 12805, 13078, 20120, 20488, 25610, 26156, 32695, 51220, 52312, 65390, 99091, 102440, 130780, 198182, 261560, 396364, 495455, 792728, 990910, 1288183, 1981820, 2576366, 3963640, 5152732, 6440915, 10305464, 12881830, 25763660, 51527320]

約数ペア:

[(1, 51527320), (2, 25763660), (4, 12881830), (5, 10305464), (8, 6440915), (10, 5152732), (13, 3963640), (20, 2576366), (26, 1981820), (40, 1288183), (52, 990910), (65, 792728), (104, 495455), (130, 396364), (197, 261560), (260, 198182), (394, 130780), (503, 102440), (520, 99091), (788, 65390), (985, 52312), (1006, 51220), (1576, 32695), (1970, 26156), (2012, 25610), (2515, 20488), (2561, 20120), (3940, 13078), (4024, 12805), (5030, 10244), (5122, 10060), (6539, 7880)]