20091816

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^2\times {\mathrm{773}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 57504330

約数和(自身を除く): 37412514

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 361, 456, 684, 722, 773, 1083, 1368, 1444, 1546, 2166, 2319, 2888, 3092, 3249, 4332, 4638, 6184, 6498, 6957, 8664, 9276, 12996, 13914, 14687, 18552, 25992, 27828, 29374, 44061, 55656, 58748, 88122, 117496, 132183, 176244, 264366, 279053, 352488, 528732, 558106, 837159, 1057464, 1116212, 1674318, 2232424, 2511477, 3348636, 5022954, 6697272, 10045908, 20091816]

約数ペア:

[(1, 20091816), (2, 10045908), (3, 6697272), (4, 5022954), (6, 3348636), (8, 2511477), (9, 2232424), (12, 1674318), (18, 1116212), (19, 1057464), (24, 837159), (36, 558106), (38, 528732), (57, 352488), (72, 279053), (76, 264366), (114, 176244), (152, 132183), (171, 117496), (228, 88122), (342, 58748), (361, 55656), (456, 44061), (684, 29374), (722, 27828), (773, 25992), (1083, 18552), (1368, 14687), (1444, 13914), (1546, 12996), (2166, 9276), (2319, 8664), (2888, 6957), (3092, 6498), (3249, 6184), (4332, 4638)]