78810880

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2677}}^1$

素因数の和:2721

約数の個数: 72

約数和(自身を含む): 197057952

約数和(自身を除く): 118247072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 920, 1280, 1472, 1840, 2677, 2944, 3680, 5354, 5888, 7360, 10708, 13385, 14720, 21416, 26770, 29440, 42832, 53540, 61571, 85664, 107080, 123142, 171328, 214160, 246284, 307855, 342656, 428320, 492568, 615710, 685312, 856640, 985136, 1231420, 1713280, 1970272, 2462840, 3426560, 3940544, 4925680, 7881088, 9851360, 15762176, 19702720, 39405440, 78810880]

約数ペア:

[(1, 78810880), (2, 39405440), (4, 19702720), (5, 15762176), (8, 9851360), (10, 7881088), (16, 4925680), (20, 3940544), (23, 3426560), (32, 2462840), (40, 1970272), (46, 1713280), (64, 1231420), (80, 985136), (92, 856640), (115, 685312), (128, 615710), (160, 492568), (184, 428320), (230, 342656), (256, 307855), (320, 246284), (368, 214160), (460, 171328), (640, 123142), (736, 107080), (920, 85664), (1280, 61571), (1472, 53540), (1840, 42832), (2677, 29440), (2944, 26770), (3680, 21416), (5354, 14720), (5888, 13385), (7360, 10708)]