20088928

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 72

約数和(自身を含む): 43781472

約数和(自身を除く): 23692544

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 47, 74, 76, 94, 148, 152, 188, 296, 304, 361, 376, 592, 608, 703, 722, 752, 893, 1184, 1406, 1444, 1504, 1739, 1786, 2812, 2888, 3478, 3572, 5624, 5776, 6956, 7144, 11248, 11552, 13357, 13912, 14288, 16967, 22496, 26714, 27824, 28576, 33041, 33934, 53428, 55648, 66082, 67868, 106856, 132164, 135736, 213712, 264328, 271472, 427424, 528656, 542944, 627779, 1057312, 1255558, 2511116, 5022232, 10044464, 20088928]

約数ペア:

[(1, 20088928), (2, 10044464), (4, 5022232), (8, 2511116), (16, 1255558), (19, 1057312), (32, 627779), (37, 542944), (38, 528656), (47, 427424), (74, 271472), (76, 264328), (94, 213712), (148, 135736), (152, 132164), (188, 106856), (296, 67868), (304, 66082), (361, 55648), (376, 53428), (592, 33934), (608, 33041), (703, 28576), (722, 27824), (752, 26714), (893, 22496), (1184, 16967), (1406, 14288), (1444, 13912), (1504, 13357), (1739, 11552), (1786, 11248), (2812, 7144), (2888, 6956), (3478, 5776), (3572, 5624)]