209322350

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 397742400

約数和(自身を除く): 188420050

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 197, 269, 394, 395, 538, 790, 985, 1345, 1970, 1975, 2690, 3950, 4925, 6725, 9850, 13450, 15563, 21251, 31126, 42502, 52993, 77815, 105986, 106255, 155630, 212510, 264965, 389075, 529930, 531275, 778150, 1062550, 1324825, 2649650, 4186447, 8372894, 20932235, 41864470, 104661175, 209322350]

約数ペア:

[(1, 209322350), (2, 104661175), (5, 41864470), (10, 20932235), (25, 8372894), (50, 4186447), (79, 2649650), (158, 1324825), (197, 1062550), (269, 778150), (394, 531275), (395, 529930), (538, 389075), (790, 264965), (985, 212510), (1345, 155630), (1970, 106255), (1975, 105986), (2690, 77815), (3950, 52993), (4925, 42502), (6725, 31126), (9850, 21251), (13450, 15563)]