253760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:91

約数の個数: 56

約数和(自身を含む): 661416

約数和(自身を除く): 407656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 130, 160, 208, 244, 260, 305, 320, 416, 488, 520, 610, 793, 832, 976, 1040, 1220, 1586, 1952, 2080, 2440, 3172, 3904, 3965, 4160, 4880, 6344, 7930, 9760, 12688, 15860, 19520, 25376, 31720, 50752, 63440, 126880, 253760]

約数ペア:

[(1, 253760), (2, 126880), (4, 63440), (5, 50752), (8, 31720), (10, 25376), (13, 19520), (16, 15860), (20, 12688), (26, 9760), (32, 7930), (40, 6344), (52, 4880), (61, 4160), (64, 3965), (65, 3904), (80, 3172), (104, 2440), (122, 2080), (130, 1952), (160, 1586), (208, 1220), (244, 1040), (260, 976), (305, 832), (320, 793), (416, 610), (488, 520)]