209211405980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{9161}}^1\times {\mathrm{18719}}^1$

素因数の和:27950

約数の個数: 48

約数和(自身を含む): 446618914560

約数和(自身を除く): 237407508580

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 9161, 18322, 18719, 36644, 37438, 45805, 74876, 91610, 93595, 183220, 187190, 374380, 558821, 1117642, 1141859, 2235284, 2283718, 2794105, 4567436, 5588210, 5709295, 11176420, 11418590, 22837180, 171484759, 342969518, 685939036, 857423795, 1714847590, 3429695180, 10460570299, 20921140598, 41842281196, 52302851495, 104605702990, 209211405980]

約数ペア:

[(1, 209211405980), (2, 104605702990), (4, 52302851495), (5, 41842281196), (10, 20921140598), (20, 10460570299), (61, 3429695180), (122, 1714847590), (244, 857423795), (305, 685939036), (610, 342969518), (1220, 171484759), (9161, 22837180), (18322, 11418590), (18719, 11176420), (36644, 5709295), (37438, 5588210), (45805, 4567436), (74876, 2794105), (91610, 2283718), (93595, 2235284), (183220, 1141859), (187190, 1117642), (374380, 558821)]