7842380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 21073920

約数和(自身を除く): 13231540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 139, 140, 155, 182, 217, 260, 278, 310, 364, 403, 434, 455, 556, 620, 695, 806, 868, 910, 973, 1085, 1390, 1612, 1807, 1820, 1946, 2015, 2170, 2780, 2821, 3614, 3892, 4030, 4309, 4340, 4865, 5642, 7228, 8060, 8618, 9035, 9730, 11284, 12649, 14105, 17236, 18070, 19460, 21545, 25298, 28210, 30163, 36140, 43090, 50596, 56017, 56420, 60326, 63245, 86180, 112034, 120652, 126490, 150815, 224068, 252980, 280085, 301630, 392119, 560170, 603260, 784238, 1120340, 1568476, 1960595, 3921190, 7842380]

約数ペア:

[(1, 7842380), (2, 3921190), (4, 1960595), (5, 1568476), (7, 1120340), (10, 784238), (13, 603260), (14, 560170), (20, 392119), (26, 301630), (28, 280085), (31, 252980), (35, 224068), (52, 150815), (62, 126490), (65, 120652), (70, 112034), (91, 86180), (124, 63245), (130, 60326), (139, 56420), (140, 56017), (155, 50596), (182, 43090), (217, 36140), (260, 30163), (278, 28210), (310, 25298), (364, 21545), (403, 19460), (434, 18070), (455, 17236), (556, 14105), (620, 12649), (695, 11284), (806, 9730), (868, 9035), (910, 8618), (973, 8060), (1085, 7228), (1390, 5642), (1612, 4865), (1807, 4340), (1820, 4309), (1946, 4030), (2015, 3892), (2170, 3614), (2780, 2821)]