66686720

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{983}}^1$

素因数の和:1057

約数の個数: 72

約数和(自身を含む): 162914976

約数和(自身を除く): 96228256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 530, 640, 848, 983, 1060, 1280, 1696, 1966, 2120, 3392, 3932, 4240, 4915, 6784, 7864, 8480, 9830, 13568, 15728, 16960, 19660, 31456, 33920, 39320, 52099, 62912, 67840, 78640, 104198, 125824, 157280, 208396, 251648, 260495, 314560, 416792, 520990, 629120, 833584, 1041980, 1258240, 1667168, 2083960, 3334336, 4167920, 6668672, 8335840, 13337344, 16671680, 33343360, 66686720]

約数ペア:

[(1, 66686720), (2, 33343360), (4, 16671680), (5, 13337344), (8, 8335840), (10, 6668672), (16, 4167920), (20, 3334336), (32, 2083960), (40, 1667168), (53, 1258240), (64, 1041980), (80, 833584), (106, 629120), (128, 520990), (160, 416792), (212, 314560), (256, 260495), (265, 251648), (320, 208396), (424, 157280), (530, 125824), (640, 104198), (848, 78640), (983, 67840), (1060, 62912), (1280, 52099), (1696, 39320), (1966, 33920), (2120, 31456), (3392, 19660), (3932, 16960), (4240, 15728), (4915, 13568), (6784, 9830), (7864, 8480)]