4257140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 9979200

約数和(自身を除く): 5722060

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 659, 1292, 1318, 1615, 2636, 3230, 3295, 6460, 6590, 11203, 12521, 13180, 22406, 25042, 44812, 50084, 56015, 62605, 112030, 125210, 212857, 224060, 250420, 425714, 851428, 1064285, 2128570, 4257140]

約数ペア:

[(1, 4257140), (2, 2128570), (4, 1064285), (5, 851428), (10, 425714), (17, 250420), (19, 224060), (20, 212857), (34, 125210), (38, 112030), (68, 62605), (76, 56015), (85, 50084), (95, 44812), (170, 25042), (190, 22406), (323, 13180), (340, 12521), (380, 11203), (646, 6590), (659, 6460), (1292, 3295), (1318, 3230), (1615, 2636)]