20121017020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5197}}^1\times {\mathrm{14891}}^1$

素因数の和:20110

約数の個数: 48

約数和(自身を含む): 45516266208

約数和(自身を除く): 25395249188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5197, 10394, 14891, 20788, 25985, 29782, 51970, 59564, 67561, 74455, 103940, 135122, 148910, 193583, 270244, 297820, 337805, 387166, 675610, 774332, 967915, 1351220, 1935830, 3871660, 77388527, 154777054, 309554108, 386942635, 773885270, 1006050851, 1547770540, 2012101702, 4024203404, 5030254255, 10060508510, 20121017020]

約数ペア:

[(1, 20121017020), (2, 10060508510), (4, 5030254255), (5, 4024203404), (10, 2012101702), (13, 1547770540), (20, 1006050851), (26, 773885270), (52, 386942635), (65, 309554108), (130, 154777054), (260, 77388527), (5197, 3871660), (10394, 1935830), (14891, 1351220), (20788, 967915), (25985, 774332), (29782, 675610), (51970, 387166), (59564, 337805), (67561, 297820), (74455, 270244), (103940, 193583), (135122, 148910)]