20331490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2917}}^1$

素因数の和:2982

約数の個数: 32

約数和(自身を含む): 39708144

約数和(自身を除く): 19376654

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 2917, 3485, 5834, 6970, 14585, 29170, 49589, 99178, 119597, 239194, 247945, 495890, 597985, 1195970, 2033149, 4066298, 10165745, 20331490]

約数ペア:

[(1, 20331490), (2, 10165745), (5, 4066298), (10, 2033149), (17, 1195970), (34, 597985), (41, 495890), (82, 247945), (85, 239194), (170, 119597), (205, 99178), (410, 49589), (697, 29170), (1394, 14585), (2917, 6970), (3485, 5834)]