20161872

素因数分解:

$2^4\times 3^4\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 100

約数和(自身を含む): 59775936

約数和(自身を除く): 39614064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 47, 48, 54, 72, 81, 94, 108, 141, 144, 162, 188, 216, 282, 324, 331, 376, 423, 432, 564, 648, 662, 752, 846, 993, 1128, 1269, 1296, 1324, 1692, 1986, 2256, 2538, 2648, 2979, 3384, 3807, 3972, 5076, 5296, 5958, 6768, 7614, 7944, 8937, 10152, 11916, 15228, 15557, 15888, 17874, 20304, 23832, 26811, 30456, 31114, 35748, 46671, 47664, 53622, 60912, 62228, 71496, 93342, 107244, 124456, 140013, 142992, 186684, 214488, 248912, 280026, 373368, 420039, 428976, 560052, 746736, 840078, 1120104, 1260117, 1680156, 2240208, 2520234, 3360312, 5040468, 6720624, 10080936, 20161872]

約数ペア:

[(1, 20161872), (2, 10080936), (3, 6720624), (4, 5040468), (6, 3360312), (8, 2520234), (9, 2240208), (12, 1680156), (16, 1260117), (18, 1120104), (24, 840078), (27, 746736), (36, 560052), (47, 428976), (48, 420039), (54, 373368), (72, 280026), (81, 248912), (94, 214488), (108, 186684), (141, 142992), (144, 140013), (162, 124456), (188, 107244), (216, 93342), (282, 71496), (324, 62228), (331, 60912), (376, 53622), (423, 47664), (432, 46671), (564, 35748), (648, 31114), (662, 30456), (752, 26811), (846, 23832), (993, 20304), (1128, 17874), (1269, 15888), (1296, 15557), (1324, 15228), (1692, 11916), (1986, 10152), (2256, 8937), (2538, 7944), (2648, 7614), (2979, 6768), (3384, 5958), (3807, 5296), (3972, 5076)]