2170940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 4989600

約数和(自身を除く): 2818660

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 197, 290, 380, 394, 551, 580, 788, 985, 1102, 1970, 2204, 2755, 3743, 3940, 5510, 5713, 7486, 11020, 11426, 14972, 18715, 22852, 28565, 37430, 57130, 74860, 108547, 114260, 217094, 434188, 542735, 1085470, 2170940]

約数ペア:

[(1, 2170940), (2, 1085470), (4, 542735), (5, 434188), (10, 217094), (19, 114260), (20, 108547), (29, 74860), (38, 57130), (58, 37430), (76, 28565), (95, 22852), (116, 18715), (145, 14972), (190, 11426), (197, 11020), (290, 7486), (380, 5713), (394, 5510), (551, 3940), (580, 3743), (788, 2755), (985, 2204), (1102, 1970)]