30728187

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 56320000

約数和(自身を除く): 25591813

約数列:

[1, 3, 7, 9, 19, 21, 27, 43, 57, 63, 129, 133, 171, 189, 199, 301, 387, 399, 513, 597, 817, 903, 1161, 1197, 1393, 1791, 2451, 2709, 3591, 3781, 4179, 5373, 5719, 7353, 8127, 8557, 11343, 12537, 17157, 22059, 25671, 26467, 34029, 37611, 51471, 59899, 77013, 79401, 102087, 154413, 162583, 179697, 231039, 238203, 487749, 539091, 714609, 1138081, 1463247, 1617273, 3414243, 4389741, 10242729, 30728187]

約数ペア:

[(1, 30728187), (3, 10242729), (7, 4389741), (9, 3414243), (19, 1617273), (21, 1463247), (27, 1138081), (43, 714609), (57, 539091), (63, 487749), (129, 238203), (133, 231039), (171, 179697), (189, 162583), (199, 154413), (301, 102087), (387, 79401), (399, 77013), (513, 59899), (597, 51471), (817, 37611), (903, 34029), (1161, 26467), (1197, 25671), (1393, 22059), (1791, 17157), (2451, 12537), (2709, 11343), (3591, 8557), (3781, 8127), (4179, 7353), (5373, 5719)]