212100420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3797}}^1$

素因数の和:3842

約数の個数: 144

約数和(自身を含む): 727392960

約数和(自身を除く): 515292540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2660, 2793, 2940, 3724, 3797, 3990, 4655, 5586, 7594, 7980, 9310, 11172, 11391, 13965, 15188, 18620, 18985, 22782, 26579, 27930, 37970, 45564, 53158, 55860, 56955, 72143, 75940, 79737, 106316, 113910, 132895, 144286, 159474, 186053, 216429, 227820, 265790, 288572, 318948, 360715, 372106, 398685, 432858, 505001, 531580, 558159, 721430, 744212, 797370, 865716, 930265, 1010002, 1082145, 1116318, 1442860, 1515003, 1594740, 1860530, 2020004, 2164290, 2232636, 2525005, 2790795, 3030006, 3535007, 3721060, 4328580, 5050010, 5581590, 6060012, 7070014, 7575015, 10100020, 10605021, 11163180, 14140028, 15150030, 17675035, 21210042, 30300060, 35350070, 42420084, 53025105, 70700140, 106050210, 212100420]

約数ペア:

[(1, 212100420), (2, 106050210), (3, 70700140), (4, 53025105), (5, 42420084), (6, 35350070), (7, 30300060), (10, 21210042), (12, 17675035), (14, 15150030), (15, 14140028), (19, 11163180), (20, 10605021), (21, 10100020), (28, 7575015), (30, 7070014), (35, 6060012), (38, 5581590), (42, 5050010), (49, 4328580), (57, 3721060), (60, 3535007), (70, 3030006), (76, 2790795), (84, 2525005), (95, 2232636), (98, 2164290), (105, 2020004), (114, 1860530), (133, 1594740), (140, 1515003), (147, 1442860), (190, 1116318), (196, 1082145), (210, 1010002), (228, 930265), (245, 865716), (266, 797370), (285, 744212), (294, 721430), (380, 558159), (399, 531580), (420, 505001), (490, 432858), (532, 398685), (570, 372106), (588, 360715), (665, 318948), (735, 288572), (798, 265790), (931, 227820), (980, 216429), (1140, 186053), (1330, 159474), (1470, 144286), (1596, 132895), (1862, 113910), (1995, 106316), (2660, 79737), (2793, 75940), (2940, 72143), (3724, 56955), (3797, 55860), (3990, 53158), (4655, 45564), (5586, 37970), (7594, 27930), (7980, 26579), (9310, 22782), (11172, 18985), (11391, 18620), (13965, 15188)]