199936490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{90469}}^1$

素因数の和:90506

約数の個数: 32

約数和(自身を含む): 410371920

約数和(自身を除く): 210435430

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 90469, 180938, 452345, 904690, 1176097, 1537973, 2352194, 3075946, 5880485, 7689865, 11760970, 15379730, 19993649, 39987298, 99968245, 199936490]

約数ペア:

[(1, 199936490), (2, 99968245), (5, 39987298), (10, 19993649), (13, 15379730), (17, 11760970), (26, 7689865), (34, 5880485), (65, 3075946), (85, 2352194), (130, 1537973), (170, 1176097), (221, 904690), (442, 452345), (1105, 180938), (2210, 90469)]