20319588

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 55065920

約数和(自身を除く): 34746332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 61, 76, 114, 122, 171, 183, 228, 244, 342, 366, 487, 549, 684, 732, 974, 1098, 1159, 1461, 1948, 2196, 2318, 2922, 3477, 4383, 4636, 5844, 6954, 8766, 9253, 10431, 13908, 17532, 18506, 20862, 27759, 29707, 37012, 41724, 55518, 59414, 83277, 89121, 111036, 118828, 166554, 178242, 267363, 333108, 356484, 534726, 564433, 1069452, 1128866, 1693299, 2257732, 3386598, 5079897, 6773196, 10159794, 20319588]

約数ペア:

[(1, 20319588), (2, 10159794), (3, 6773196), (4, 5079897), (6, 3386598), (9, 2257732), (12, 1693299), (18, 1128866), (19, 1069452), (36, 564433), (38, 534726), (57, 356484), (61, 333108), (76, 267363), (114, 178242), (122, 166554), (171, 118828), (183, 111036), (228, 89121), (244, 83277), (342, 59414), (366, 55518), (487, 41724), (549, 37012), (684, 29707), (732, 27759), (974, 20862), (1098, 18506), (1159, 17532), (1461, 13908), (1948, 10431), (2196, 9253), (2318, 8766), (2922, 6954), (3477, 5844), (4383, 4636)]