78731289

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 147393792

約数和(自身を除く): 68662503

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 117, 147, 217, 273, 279, 403, 441, 443, 637, 651, 819, 1209, 1329, 1519, 1911, 1953, 2821, 3101, 3627, 3987, 4557, 5733, 5759, 8463, 9303, 13671, 13733, 17277, 19747, 21707, 25389, 27909, 40313, 41199, 51831, 59241, 65121, 96131, 120939, 123597, 177723, 178529, 195363, 282191, 288393, 362817, 535587, 672917, 846573, 865179, 1249703, 1606761, 2018751, 2539719, 3749109, 6056253, 8747921, 11247327, 26243763, 78731289]

約数ペア:

[(1, 78731289), (3, 26243763), (7, 11247327), (9, 8747921), (13, 6056253), (21, 3749109), (31, 2539719), (39, 2018751), (49, 1606761), (63, 1249703), (91, 865179), (93, 846573), (117, 672917), (147, 535587), (217, 362817), (273, 288393), (279, 282191), (403, 195363), (441, 178529), (443, 177723), (637, 123597), (651, 120939), (819, 96131), (1209, 65121), (1329, 59241), (1519, 51831), (1911, 41199), (1953, 40313), (2821, 27909), (3101, 25389), (3627, 21707), (3987, 19747), (4557, 17277), (5733, 13733), (5759, 13671), (8463, 9303)]