19655712

素因数分解:

$2^5\times 3^2\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:646

約数の個数: 72

約数和(自身を含む): 56412720

約数和(自身を除く): 36757008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 139, 144, 278, 288, 417, 491, 556, 834, 982, 1112, 1251, 1473, 1668, 1964, 2224, 2502, 2946, 3336, 3928, 4419, 4448, 5004, 5892, 6672, 7856, 8838, 10008, 11784, 13344, 15712, 17676, 20016, 23568, 35352, 40032, 47136, 68249, 70704, 136498, 141408, 204747, 272996, 409494, 545992, 614241, 818988, 1091984, 1228482, 1637976, 2183968, 2456964, 3275952, 4913928, 6551904, 9827856, 19655712]

約数ペア:

[(1, 19655712), (2, 9827856), (3, 6551904), (4, 4913928), (6, 3275952), (8, 2456964), (9, 2183968), (12, 1637976), (16, 1228482), (18, 1091984), (24, 818988), (32, 614241), (36, 545992), (48, 409494), (72, 272996), (96, 204747), (139, 141408), (144, 136498), (278, 70704), (288, 68249), (417, 47136), (491, 40032), (556, 35352), (834, 23568), (982, 20016), (1112, 17676), (1251, 15712), (1473, 13344), (1668, 11784), (1964, 10008), (2224, 8838), (2502, 7856), (2946, 6672), (3336, 5892), (3928, 5004), (4419, 4448)]