20351552

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:487

約数の個数: 56

約数和(自身を含む): 44314872

約数和(自身を除く): 23963320

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 208, 244, 401, 416, 488, 793, 802, 832, 976, 1586, 1604, 1952, 3172, 3208, 3904, 5213, 6344, 6416, 10426, 12688, 12832, 20852, 24461, 25376, 25664, 41704, 48922, 50752, 83408, 97844, 166816, 195688, 317993, 333632, 391376, 635986, 782752, 1271972, 1565504, 2543944, 5087888, 10175776, 20351552]

約数ペア:

[(1, 20351552), (2, 10175776), (4, 5087888), (8, 2543944), (13, 1565504), (16, 1271972), (26, 782752), (32, 635986), (52, 391376), (61, 333632), (64, 317993), (104, 195688), (122, 166816), (208, 97844), (244, 83408), (401, 50752), (416, 48922), (488, 41704), (793, 25664), (802, 25376), (832, 24461), (976, 20852), (1586, 12832), (1604, 12688), (1952, 10426), (3172, 6416), (3208, 6344), (3904, 5213)]