84942040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 197121600

約数和(自身を除く): 112179560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 103, 106, 206, 212, 265, 389, 412, 424, 515, 530, 778, 824, 1030, 1060, 1556, 1945, 2060, 2120, 3112, 3890, 4120, 5459, 7780, 10918, 15560, 20617, 21836, 27295, 40067, 41234, 43672, 54590, 80134, 82468, 103085, 109180, 160268, 164936, 200335, 206170, 218360, 320536, 400670, 412340, 801340, 824680, 1602680, 2123551, 4247102, 8494204, 10617755, 16988408, 21235510, 42471020, 84942040]

約数ペア:

[(1, 84942040), (2, 42471020), (4, 21235510), (5, 16988408), (8, 10617755), (10, 8494204), (20, 4247102), (40, 2123551), (53, 1602680), (103, 824680), (106, 801340), (206, 412340), (212, 400670), (265, 320536), (389, 218360), (412, 206170), (424, 200335), (515, 164936), (530, 160268), (778, 109180), (824, 103085), (1030, 82468), (1060, 80134), (1556, 54590), (1945, 43672), (2060, 41234), (2120, 40067), (3112, 27295), (3890, 21836), (4120, 20617), (5459, 15560), (7780, 10918)]