20123910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1110

約数の個数: 64

約数和(自身を含む): 54452160

約数和(自身を除く): 34328250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 73, 90, 135, 146, 219, 270, 365, 438, 657, 730, 1021, 1095, 1314, 1971, 2042, 2190, 3063, 3285, 3942, 5105, 6126, 6570, 9189, 9855, 10210, 15315, 18378, 19710, 27567, 30630, 45945, 55134, 74533, 91890, 137835, 149066, 223599, 275670, 372665, 447198, 670797, 745330, 1117995, 1341594, 2012391, 2235990, 3353985, 4024782, 6707970, 10061955, 20123910]

約数ペア:

[(1, 20123910), (2, 10061955), (3, 6707970), (5, 4024782), (6, 3353985), (9, 2235990), (10, 2012391), (15, 1341594), (18, 1117995), (27, 745330), (30, 670797), (45, 447198), (54, 372665), (73, 275670), (90, 223599), (135, 149066), (146, 137835), (219, 91890), (270, 74533), (365, 55134), (438, 45945), (657, 30630), (730, 27567), (1021, 19710), (1095, 18378), (1314, 15315), (1971, 10210), (2042, 9855), (2190, 9189), (3063, 6570), (3285, 6126), (3942, 5105)]