208148920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1993}}^1$

素因数の和:2384

約数の個数: 64

約数和(自身を含む): 536944320

約数和(自身を除く): 328795400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 373, 746, 1492, 1865, 1993, 2611, 2984, 3730, 3986, 5222, 7460, 7972, 9965, 10444, 13055, 13951, 14920, 15944, 19930, 20888, 26110, 27902, 39860, 52220, 55804, 69755, 79720, 104440, 111608, 139510, 279020, 558040, 743389, 1486778, 2973556, 3716945, 5203723, 5947112, 7433890, 10407446, 14867780, 20814892, 26018615, 29735560, 41629784, 52037230, 104074460, 208148920]

約数ペア:

[(1, 208148920), (2, 104074460), (4, 52037230), (5, 41629784), (7, 29735560), (8, 26018615), (10, 20814892), (14, 14867780), (20, 10407446), (28, 7433890), (35, 5947112), (40, 5203723), (56, 3716945), (70, 2973556), (140, 1486778), (280, 743389), (373, 558040), (746, 279020), (1492, 139510), (1865, 111608), (1993, 104440), (2611, 79720), (2984, 69755), (3730, 55804), (3986, 52220), (5222, 39860), (7460, 27902), (7972, 26110), (9965, 20888), (10444, 19930), (13055, 15944), (13951, 14920)]