138705720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67993}}^1$

素因数の和:68024

約数の個数: 64

約数和(自身を含む): 440601120

約数和(自身を除く): 301895400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 67993, 135986, 203979, 271972, 339965, 407958, 543944, 679930, 815916, 1019895, 1155881, 1359860, 1631832, 2039790, 2311762, 2719720, 3467643, 4079580, 4623524, 5779405, 6935286, 8159160, 9247048, 11558810, 13870572, 17338215, 23117620, 27741144, 34676430, 46235240, 69352860, 138705720]

約数ペア:

[(1, 138705720), (2, 69352860), (3, 46235240), (4, 34676430), (5, 27741144), (6, 23117620), (8, 17338215), (10, 13870572), (12, 11558810), (15, 9247048), (17, 8159160), (20, 6935286), (24, 5779405), (30, 4623524), (34, 4079580), (40, 3467643), (51, 2719720), (60, 2311762), (68, 2039790), (85, 1631832), (102, 1359860), (120, 1155881), (136, 1019895), (170, 815916), (204, 679930), (255, 543944), (340, 407958), (408, 339965), (510, 271972), (680, 203979), (1020, 135986), (2040, 67993)]