81896140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{3049}}^1$

素因数の和:3154

約数の個数: 48

約数和(自身を含む): 184464000

約数和(自身を除く): 102567860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1343, 1580, 2686, 3049, 5372, 6098, 6715, 12196, 13430, 15245, 26860, 30490, 51833, 60980, 103666, 207332, 240871, 259165, 481742, 518330, 963484, 1036660, 1204355, 2408710, 4094807, 4817420, 8189614, 16379228, 20474035, 40948070, 81896140]

約数ペア:

[(1, 81896140), (2, 40948070), (4, 20474035), (5, 16379228), (10, 8189614), (17, 4817420), (20, 4094807), (34, 2408710), (68, 1204355), (79, 1036660), (85, 963484), (158, 518330), (170, 481742), (316, 259165), (340, 240871), (395, 207332), (790, 103666), (1343, 60980), (1580, 51833), (2686, 30490), (3049, 26860), (5372, 15245), (6098, 13430), (6715, 12196)]