29963980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1559}}^1$

素因数の和:1630

約数の個数: 36

約数和(自身を含む): 65061360

約数和(自身を除く): 35097380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1559, 1922, 3118, 3844, 4805, 6236, 7795, 9610, 15590, 19220, 31180, 48329, 96658, 193316, 241645, 483290, 966580, 1498199, 2996398, 5992796, 7490995, 14981990, 29963980]

約数ペア:

[(1, 29963980), (2, 14981990), (4, 7490995), (5, 5992796), (10, 2996398), (20, 1498199), (31, 966580), (62, 483290), (124, 241645), (155, 193316), (310, 96658), (620, 48329), (961, 31180), (1559, 19220), (1922, 15590), (3118, 9610), (3844, 7795), (4805, 6236)]