19787320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4157}}^1$

素因数の和:4192

約数の個数: 64

約数和(自身を含む): 53887680

約数和(自身を除く): 34100360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4157, 4760, 8314, 16628, 20785, 29099, 33256, 41570, 58198, 70669, 83140, 116396, 141338, 145495, 166280, 232792, 282676, 290990, 353345, 494683, 565352, 581980, 706690, 989366, 1163960, 1413380, 1978732, 2473415, 2826760, 3957464, 4946830, 9893660, 19787320]

約数ペア:

[(1, 19787320), (2, 9893660), (4, 4946830), (5, 3957464), (7, 2826760), (8, 2473415), (10, 1978732), (14, 1413380), (17, 1163960), (20, 989366), (28, 706690), (34, 581980), (35, 565352), (40, 494683), (56, 353345), (68, 290990), (70, 282676), (85, 232792), (119, 166280), (136, 145495), (140, 141338), (170, 116396), (238, 83140), (280, 70669), (340, 58198), (476, 41570), (595, 33256), (680, 29099), (952, 20785), (1190, 16628), (2380, 8314), (4157, 4760)]