81557940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{7043}}^1$

素因数の和:7248

約数の個数: 48

約数和(自身を含む): 229578048

約数和(自身を除く): 148020108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 193, 386, 579, 772, 965, 1158, 1930, 2316, 2895, 3860, 5790, 7043, 11580, 14086, 21129, 28172, 35215, 42258, 70430, 84516, 105645, 140860, 211290, 422580, 1359299, 2718598, 4077897, 5437196, 6796495, 8155794, 13592990, 16311588, 20389485, 27185980, 40778970, 81557940]

約数ペア:

[(1, 81557940), (2, 40778970), (3, 27185980), (4, 20389485), (5, 16311588), (6, 13592990), (10, 8155794), (12, 6796495), (15, 5437196), (20, 4077897), (30, 2718598), (60, 1359299), (193, 422580), (386, 211290), (579, 140860), (772, 105645), (965, 84516), (1158, 70430), (1930, 42258), (2316, 35215), (2895, 28172), (3860, 21129), (5790, 14086), (7043, 11580)]