20087557668

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{320867}}^1$

素因数の和:320961

約数の個数: 72

約数和(自身を含む): 53258954112

約数和(自身を除く): 33171396444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 47, 74, 94, 111, 141, 148, 188, 222, 282, 333, 423, 444, 564, 666, 846, 1332, 1692, 1739, 3478, 5217, 6956, 10434, 15651, 20868, 31302, 62604, 320867, 641734, 962601, 1283468, 1925202, 2887803, 3850404, 5775606, 11551212, 11872079, 15080749, 23744158, 30161498, 35616237, 45242247, 47488316, 60322996, 71232474, 90484494, 106848711, 135726741, 142464948, 180968988, 213697422, 271453482, 427394844, 542906964, 557987713, 1115975426, 1673963139, 2231950852, 3347926278, 5021889417, 6695852556, 10043778834, 20087557668]

約数ペア:

[(1, 20087557668), (2, 10043778834), (3, 6695852556), (4, 5021889417), (6, 3347926278), (9, 2231950852), (12, 1673963139), (18, 1115975426), (36, 557987713), (37, 542906964), (47, 427394844), (74, 271453482), (94, 213697422), (111, 180968988), (141, 142464948), (148, 135726741), (188, 106848711), (222, 90484494), (282, 71232474), (333, 60322996), (423, 47488316), (444, 45242247), (564, 35616237), (666, 30161498), (846, 23744158), (1332, 15080749), (1692, 11872079), (1739, 11551212), (3478, 5775606), (5217, 3850404), (6956, 2887803), (10434, 1925202), (15651, 1283468), (20868, 962601), (31302, 641734), (62604, 320867)]