40445140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 88678800

約数和(自身を除く): 48233660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 274, 290, 509, 548, 580, 685, 1018, 1370, 2036, 2545, 2740, 3973, 5090, 7946, 10180, 14761, 15892, 19865, 29522, 39730, 59044, 69733, 73805, 79460, 139466, 147610, 278932, 295220, 348665, 697330, 1394660, 2022257, 4044514, 8089028, 10111285, 20222570, 40445140]

約数ペア:

[(1, 40445140), (2, 20222570), (4, 10111285), (5, 8089028), (10, 4044514), (20, 2022257), (29, 1394660), (58, 697330), (116, 348665), (137, 295220), (145, 278932), (274, 147610), (290, 139466), (509, 79460), (548, 73805), (580, 69733), (685, 59044), (1018, 39730), (1370, 29522), (2036, 19865), (2545, 15892), (2740, 14761), (3973, 10180), (5090, 7946)]