905388520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{1733}}^1$

素因数の和:2134

約数の個数: 64

約数和(自身を含む): 2099319120

約数和(自身を除く): 1193930600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 353, 370, 706, 740, 1412, 1480, 1733, 1765, 2824, 3466, 3530, 6932, 7060, 8665, 13061, 13864, 14120, 17330, 26122, 34660, 52244, 64121, 65305, 69320, 104488, 128242, 130610, 256484, 261220, 320605, 512968, 522440, 611749, 641210, 1223498, 1282420, 2446996, 2564840, 3058745, 4893992, 6117490, 12234980, 22634713, 24469960, 45269426, 90538852, 113173565, 181077704, 226347130, 452694260, 905388520]

約数ペア:

[(1, 905388520), (2, 452694260), (4, 226347130), (5, 181077704), (8, 113173565), (10, 90538852), (20, 45269426), (37, 24469960), (40, 22634713), (74, 12234980), (148, 6117490), (185, 4893992), (296, 3058745), (353, 2564840), (370, 2446996), (706, 1282420), (740, 1223498), (1412, 641210), (1480, 611749), (1733, 522440), (1765, 512968), (2824, 320605), (3466, 261220), (3530, 256484), (6932, 130610), (7060, 128242), (8665, 104488), (13061, 69320), (13864, 65305), (14120, 64121), (17330, 52244), (26122, 34660)]