30740220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:840

約数の個数: 144

約数和(自身を含む): 110143488

約数和(自身を除く): 79403268

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 787, 868, 930, 1085, 1116, 1260, 1302, 1395, 1574, 1860, 1953, 2170, 2361, 2604, 2790, 3148, 3255, 3906, 3935, 4340, 4722, 5509, 5580, 6510, 7083, 7812, 7870, 9444, 9765, 11018, 11805, 13020, 14166, 15740, 16527, 19530, 22036, 23610, 24397, 27545, 28332, 33054, 35415, 39060, 47220, 48794, 49581, 55090, 66108, 70830, 73191, 82635, 97588, 99162, 110180, 121985, 141660, 146382, 165270, 170779, 198324, 219573, 243970, 247905, 292764, 330540, 341558, 365955, 439146, 487940, 495810, 512337, 683116, 731910, 853895, 878292, 991620, 1024674, 1097865, 1463820, 1537011, 1707790, 2049348, 2195730, 2561685, 3074022, 3415580, 4391460, 5123370, 6148044, 7685055, 10246740, 15370110, 30740220]

約数ペア:

[(1, 30740220), (2, 15370110), (3, 10246740), (4, 7685055), (5, 6148044), (6, 5123370), (7, 4391460), (9, 3415580), (10, 3074022), (12, 2561685), (14, 2195730), (15, 2049348), (18, 1707790), (20, 1537011), (21, 1463820), (28, 1097865), (30, 1024674), (31, 991620), (35, 878292), (36, 853895), (42, 731910), (45, 683116), (60, 512337), (62, 495810), (63, 487940), (70, 439146), (84, 365955), (90, 341558), (93, 330540), (105, 292764), (124, 247905), (126, 243970), (140, 219573), (155, 198324), (180, 170779), (186, 165270), (210, 146382), (217, 141660), (252, 121985), (279, 110180), (310, 99162), (315, 97588), (372, 82635), (420, 73191), (434, 70830), (465, 66108), (558, 55090), (620, 49581), (630, 48794), (651, 47220), (787, 39060), (868, 35415), (930, 33054), (1085, 28332), (1116, 27545), (1260, 24397), (1302, 23610), (1395, 22036), (1574, 19530), (1860, 16527), (1953, 15740), (2170, 14166), (2361, 13020), (2604, 11805), (2790, 11018), (3148, 9765), (3255, 9444), (3906, 7870), (3935, 7812), (4340, 7083), (4722, 6510), (5509, 5580)]