19461390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 31341810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 139, 195, 278, 359, 390, 417, 695, 718, 834, 1077, 1390, 1795, 1807, 2085, 2154, 3590, 3614, 4170, 4667, 5385, 5421, 9035, 9334, 10770, 10842, 14001, 18070, 23335, 27105, 28002, 46670, 49901, 54210, 70005, 99802, 140010, 149703, 249505, 299406, 499010, 648713, 748515, 1297426, 1497030, 1946139, 3243565, 3892278, 6487130, 9730695, 19461390]

約数ペア:

[(1, 19461390), (2, 9730695), (3, 6487130), (5, 3892278), (6, 3243565), (10, 1946139), (13, 1497030), (15, 1297426), (26, 748515), (30, 648713), (39, 499010), (65, 299406), (78, 249505), (130, 149703), (139, 140010), (195, 99802), (278, 70005), (359, 54210), (390, 49901), (417, 46670), (695, 28002), (718, 27105), (834, 23335), (1077, 18070), (1390, 14001), (1795, 10842), (1807, 10770), (2085, 9334), (2154, 9035), (3590, 5421), (3614, 5385), (4170, 4667)]