19712909210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{8707}}^1$

素因数の和:8991

約数の個数: 64

約数和(自身を含む): 37881889920

約数和(自身を除く): 18168980710

約数列:

[1, 2, 5, 10, 29, 37, 58, 74, 145, 185, 211, 290, 370, 422, 1055, 1073, 2110, 2146, 5365, 6119, 7807, 8707, 10730, 12238, 15614, 17414, 30595, 39035, 43535, 61190, 78070, 87070, 226403, 252503, 322159, 452806, 505006, 644318, 1132015, 1262515, 1610795, 1837177, 2264030, 2525030, 3221590, 3674354, 9185885, 9342611, 18371770, 18685222, 46713055, 53278133, 67975549, 93426110, 106556266, 135951098, 266390665, 339877745, 532781330, 679755490, 1971290921, 3942581842, 9856454605, 19712909210]

約数ペア:

[(1, 19712909210), (2, 9856454605), (5, 3942581842), (10, 1971290921), (29, 679755490), (37, 532781330), (58, 339877745), (74, 266390665), (145, 135951098), (185, 106556266), (211, 93426110), (290, 67975549), (370, 53278133), (422, 46713055), (1055, 18685222), (1073, 18371770), (2110, 9342611), (2146, 9185885), (5365, 3674354), (6119, 3221590), (7807, 2525030), (8707, 2264030), (10730, 1837177), (12238, 1610795), (15614, 1262515), (17414, 1132015), (30595, 644318), (39035, 505006), (43535, 452806), (61190, 322159), (78070, 252503), (87070, 226403)]