258720420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{641}}^1$

素因数の和:722

約数の個数: 144

約数和(自身を含む): 856808064

約数和(自身を除く): 598087644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 641, 651, 868, 930, 961, 1085, 1282, 1302, 1860, 1922, 1923, 2170, 2564, 2604, 2883, 3205, 3255, 3844, 3846, 4340, 4487, 4805, 5766, 6410, 6510, 6727, 7692, 8974, 9610, 9615, 11532, 12820, 13020, 13454, 13461, 14415, 17948, 19220, 19230, 19871, 20181, 22435, 26908, 26922, 28830, 33635, 38460, 39742, 40362, 44870, 53844, 57660, 59613, 67270, 67305, 79484, 80724, 89740, 99355, 100905, 119226, 134540, 134610, 139097, 198710, 201810, 238452, 269220, 278194, 298065, 397420, 403620, 417291, 556388, 596130, 616001, 695485, 834582, 1192260, 1232002, 1390970, 1669164, 1848003, 2086455, 2464004, 2781940, 3080005, 3696006, 4172910, 4312007, 6160010, 7392012, 8345820, 8624014, 9240015, 12320020, 12936021, 17248028, 18480030, 21560035, 25872042, 36960060, 43120070, 51744084, 64680105, 86240140, 129360210, 258720420]

約数ペア:

[(1, 258720420), (2, 129360210), (3, 86240140), (4, 64680105), (5, 51744084), (6, 43120070), (7, 36960060), (10, 25872042), (12, 21560035), (14, 18480030), (15, 17248028), (20, 12936021), (21, 12320020), (28, 9240015), (30, 8624014), (31, 8345820), (35, 7392012), (42, 6160010), (60, 4312007), (62, 4172910), (70, 3696006), (84, 3080005), (93, 2781940), (105, 2464004), (124, 2086455), (140, 1848003), (155, 1669164), (186, 1390970), (210, 1232002), (217, 1192260), (310, 834582), (372, 695485), (420, 616001), (434, 596130), (465, 556388), (620, 417291), (641, 403620), (651, 397420), (868, 298065), (930, 278194), (961, 269220), (1085, 238452), (1282, 201810), (1302, 198710), (1860, 139097), (1922, 134610), (1923, 134540), (2170, 119226), (2564, 100905), (2604, 99355), (2883, 89740), (3205, 80724), (3255, 79484), (3844, 67305), (3846, 67270), (4340, 59613), (4487, 57660), (4805, 53844), (5766, 44870), (6410, 40362), (6510, 39742), (6727, 38460), (7692, 33635), (8974, 28830), (9610, 26922), (9615, 26908), (11532, 22435), (12820, 20181), (13020, 19871), (13454, 19230), (13461, 19220), (14415, 17948)]