20738240

素因数分解:

$2^6\times 5^1\times {\mathrm{229}}^1\times {\mathrm{283}}^1$

素因数の和:529

約数の個数: 56

約数和(自身を含む): 49773840

約数和(自身を除く): 29035600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 229, 283, 320, 458, 566, 916, 1132, 1145, 1415, 1832, 2264, 2290, 2830, 3664, 4528, 4580, 5660, 7328, 9056, 9160, 11320, 14656, 18112, 18320, 22640, 36640, 45280, 64807, 73280, 90560, 129614, 259228, 324035, 518456, 648070, 1036912, 1296140, 2073824, 2592280, 4147648, 5184560, 10369120, 20738240]

約数ペア:

[(1, 20738240), (2, 10369120), (4, 5184560), (5, 4147648), (8, 2592280), (10, 2073824), (16, 1296140), (20, 1036912), (32, 648070), (40, 518456), (64, 324035), (80, 259228), (160, 129614), (229, 90560), (283, 73280), (320, 64807), (458, 45280), (566, 36640), (916, 22640), (1132, 18320), (1145, 18112), (1415, 14656), (1832, 11320), (2264, 9160), (2290, 9056), (2830, 7328), (3664, 5660), (4528, 4580)]