20831933220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{161563}}^1$

素因数の和:161889

約数の個数: 96

約数和(自身を含む): 66879740928

約数和(自身を除く): 46047807708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 307, 420, 614, 921, 1228, 1535, 1842, 2149, 3070, 3684, 4298, 4605, 6140, 6447, 8596, 9210, 10745, 12894, 18420, 21490, 25788, 32235, 42980, 64470, 128940, 161563, 323126, 484689, 646252, 807815, 969378, 1130941, 1615630, 1938756, 2261882, 2423445, 3231260, 3392823, 4523764, 4846890, 5654705, 6785646, 9693780, 11309410, 13571292, 16964115, 22618820, 33928230, 49599841, 67856460, 99199682, 148799523, 198399364, 247999205, 297599046, 347198887, 495998410, 595198092, 694397774, 743997615, 991996820, 1041596661, 1388795548, 1487995230, 1735994435, 2083193322, 2975990460, 3471988870, 4166386644, 5207983305, 6943977740, 10415966610, 20831933220]

約数ペア:

[(1, 20831933220), (2, 10415966610), (3, 6943977740), (4, 5207983305), (5, 4166386644), (6, 3471988870), (7, 2975990460), (10, 2083193322), (12, 1735994435), (14, 1487995230), (15, 1388795548), (20, 1041596661), (21, 991996820), (28, 743997615), (30, 694397774), (35, 595198092), (42, 495998410), (60, 347198887), (70, 297599046), (84, 247999205), (105, 198399364), (140, 148799523), (210, 99199682), (307, 67856460), (420, 49599841), (614, 33928230), (921, 22618820), (1228, 16964115), (1535, 13571292), (1842, 11309410), (2149, 9693780), (3070, 6785646), (3684, 5654705), (4298, 4846890), (4605, 4523764), (6140, 3392823), (6447, 3231260), (8596, 2423445), (9210, 2261882), (10745, 1938756), (12894, 1615630), (18420, 1130941), (21490, 969378), (25788, 807815), (32235, 646252), (42980, 484689), (64470, 323126), (128940, 161563)]