80671720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{593}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 192456000

約数和(自身を除く): 111784280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 179, 190, 358, 380, 593, 716, 760, 895, 1186, 1432, 1790, 2372, 2965, 3401, 3580, 4744, 5930, 6802, 7160, 11267, 11860, 13604, 17005, 22534, 23720, 27208, 34010, 45068, 56335, 68020, 90136, 106147, 112670, 136040, 212294, 225340, 424588, 450680, 530735, 849176, 1061470, 2016793, 2122940, 4033586, 4245880, 8067172, 10083965, 16134344, 20167930, 40335860, 80671720]

約数ペア:

[(1, 80671720), (2, 40335860), (4, 20167930), (5, 16134344), (8, 10083965), (10, 8067172), (19, 4245880), (20, 4033586), (38, 2122940), (40, 2016793), (76, 1061470), (95, 849176), (152, 530735), (179, 450680), (190, 424588), (358, 225340), (380, 212294), (593, 136040), (716, 112670), (760, 106147), (895, 90136), (1186, 68020), (1432, 56335), (1790, 45068), (2372, 34010), (2965, 27208), (3401, 23720), (3580, 22534), (4744, 17005), (5930, 13604), (6802, 11860), (7160, 11267)]