19139620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1373}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 43627248

約数和(自身を除く): 24487628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1373, 1394, 2746, 2788, 3485, 5492, 6865, 6970, 13730, 13940, 23341, 27460, 46682, 56293, 93364, 112586, 116705, 225172, 233410, 281465, 466820, 562930, 956981, 1125860, 1913962, 3827924, 4784905, 9569810, 19139620]

約数ペア:

[(1, 19139620), (2, 9569810), (4, 4784905), (5, 3827924), (10, 1913962), (17, 1125860), (20, 956981), (34, 562930), (41, 466820), (68, 281465), (82, 233410), (85, 225172), (164, 116705), (170, 112586), (205, 93364), (340, 56293), (410, 46682), (697, 27460), (820, 23341), (1373, 13940), (1394, 13730), (2746, 6970), (2788, 6865), (3485, 5492)]