7280420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:82

約数の個数: 144

約数和(自身を含む): 20684160

約数和(自身を除く): 13403740

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 23, 28, 34, 35, 38, 46, 49, 68, 70, 76, 85, 92, 95, 98, 115, 119, 133, 140, 161, 170, 190, 196, 230, 238, 245, 266, 322, 323, 340, 380, 391, 437, 460, 476, 490, 532, 595, 644, 646, 665, 782, 805, 833, 874, 931, 980, 1127, 1190, 1292, 1330, 1564, 1610, 1615, 1666, 1748, 1862, 1955, 2185, 2254, 2261, 2380, 2660, 2737, 3059, 3220, 3230, 3332, 3724, 3910, 4165, 4370, 4508, 4522, 4655, 5474, 5635, 6118, 6460, 7429, 7820, 8330, 8740, 9044, 9310, 10948, 11270, 11305, 12236, 13685, 14858, 15295, 15827, 16660, 18620, 19159, 21413, 22540, 22610, 27370, 29716, 30590, 31654, 37145, 38318, 42826, 45220, 52003, 54740, 61180, 63308, 74290, 76636, 79135, 85652, 95795, 104006, 107065, 148580, 158270, 191590, 208012, 214130, 260015, 316540, 364021, 383180, 428260, 520030, 728042, 1040060, 1456084, 1820105, 3640210, 7280420]

約数ペア:

[(1, 7280420), (2, 3640210), (4, 1820105), (5, 1456084), (7, 1040060), (10, 728042), (14, 520030), (17, 428260), (19, 383180), (20, 364021), (23, 316540), (28, 260015), (34, 214130), (35, 208012), (38, 191590), (46, 158270), (49, 148580), (68, 107065), (70, 104006), (76, 95795), (85, 85652), (92, 79135), (95, 76636), (98, 74290), (115, 63308), (119, 61180), (133, 54740), (140, 52003), (161, 45220), (170, 42826), (190, 38318), (196, 37145), (230, 31654), (238, 30590), (245, 29716), (266, 27370), (322, 22610), (323, 22540), (340, 21413), (380, 19159), (391, 18620), (437, 16660), (460, 15827), (476, 15295), (490, 14858), (532, 13685), (595, 12236), (644, 11305), (646, 11270), (665, 10948), (782, 9310), (805, 9044), (833, 8740), (874, 8330), (931, 7820), (980, 7429), (1127, 6460), (1190, 6118), (1292, 5635), (1330, 5474), (1564, 4655), (1610, 4522), (1615, 4508), (1666, 4370), (1748, 4165), (1862, 3910), (1955, 3724), (2185, 3332), (2254, 3230), (2261, 3220), (2380, 3059), (2660, 2737)]