20199871240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1181}}^1\times {\mathrm{25153}}^1$

素因数の和:26362

約数の個数: 64

約数和(自身を含む): 48165885360

約数和(自身を除く): 27966014120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 1181, 2362, 4724, 5905, 9448, 11810, 20077, 23620, 25153, 40154, 47240, 50306, 80308, 100385, 100612, 125765, 160616, 200770, 201224, 251530, 401540, 427601, 503060, 803080, 855202, 1006120, 1710404, 2138005, 3420808, 4276010, 8552020, 17104040, 29705693, 59411386, 118822772, 148528465, 237645544, 297056930, 504996781, 594113860, 1009993562, 1188227720, 2019987124, 2524983905, 4039974248, 5049967810, 10099935620, 20199871240]

約数ペア:

[(1, 20199871240), (2, 10099935620), (4, 5049967810), (5, 4039974248), (8, 2524983905), (10, 2019987124), (17, 1188227720), (20, 1009993562), (34, 594113860), (40, 504996781), (68, 297056930), (85, 237645544), (136, 148528465), (170, 118822772), (340, 59411386), (680, 29705693), (1181, 17104040), (2362, 8552020), (4724, 4276010), (5905, 3420808), (9448, 2138005), (11810, 1710404), (20077, 1006120), (23620, 855202), (25153, 803080), (40154, 503060), (47240, 427601), (50306, 401540), (80308, 251530), (100385, 201224), (100612, 200770), (125765, 160616)]