81267372

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1703

約数の個数: 72

約数和(自身を含む): 218006880

約数和(自身を除く): 136739508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 61, 69, 92, 122, 138, 183, 207, 244, 276, 366, 414, 549, 732, 828, 1098, 1403, 1609, 2196, 2806, 3218, 4209, 4827, 5612, 6436, 8418, 9654, 12627, 14481, 16836, 19308, 25254, 28962, 37007, 50508, 57924, 74014, 98149, 111021, 148028, 196298, 222042, 294447, 333063, 392596, 444084, 588894, 666126, 883341, 1177788, 1332252, 1766682, 2257427, 3533364, 4514854, 6772281, 9029708, 13544562, 20316843, 27089124, 40633686, 81267372]

約数ペア:

[(1, 81267372), (2, 40633686), (3, 27089124), (4, 20316843), (6, 13544562), (9, 9029708), (12, 6772281), (18, 4514854), (23, 3533364), (36, 2257427), (46, 1766682), (61, 1332252), (69, 1177788), (92, 883341), (122, 666126), (138, 588894), (183, 444084), (207, 392596), (244, 333063), (276, 294447), (366, 222042), (414, 196298), (549, 148028), (732, 111021), (828, 98149), (1098, 74014), (1403, 57924), (1609, 50508), (2196, 37007), (2806, 28962), (3218, 25254), (4209, 19308), (4827, 16836), (5612, 14481), (6436, 12627), (8418, 9654)]