131533990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 280558080

約数和(自身を除く): 149024090

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 89, 178, 215, 301, 430, 445, 491, 602, 623, 890, 982, 1246, 1505, 2455, 3010, 3115, 3437, 3827, 4910, 6230, 6874, 7654, 17185, 19135, 21113, 26789, 34370, 38270, 42226, 43699, 53578, 87398, 105565, 133945, 147791, 211130, 218495, 267890, 295582, 305893, 436990, 611786, 738955, 1477910, 1529465, 1879057, 3058930, 3758114, 9395285, 13153399, 18790570, 26306798, 65766995, 131533990]

約数ペア:

[(1, 131533990), (2, 65766995), (5, 26306798), (7, 18790570), (10, 13153399), (14, 9395285), (35, 3758114), (43, 3058930), (70, 1879057), (86, 1529465), (89, 1477910), (178, 738955), (215, 611786), (301, 436990), (430, 305893), (445, 295582), (491, 267890), (602, 218495), (623, 211130), (890, 147791), (982, 133945), (1246, 105565), (1505, 87398), (2455, 53578), (3010, 43699), (3115, 42226), (3437, 38270), (3827, 34370), (4910, 26789), (6230, 21113), (6874, 19135), (7654, 17185)]