12915420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 44126208

約数和(自身を除く): 31210788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 191, 196, 210, 230, 245, 276, 294, 322, 345, 382, 420, 460, 483, 490, 573, 588, 644, 690, 735, 764, 805, 955, 966, 980, 1127, 1146, 1337, 1380, 1470, 1610, 1910, 1932, 2254, 2292, 2415, 2674, 2865, 2940, 3220, 3381, 3820, 4011, 4393, 4508, 4830, 5348, 5635, 5730, 6685, 6762, 8022, 8786, 9359, 9660, 11270, 11460, 13179, 13370, 13524, 16044, 16905, 17572, 18718, 20055, 21965, 22540, 26358, 26740, 28077, 30751, 33810, 37436, 40110, 43930, 46795, 52716, 56154, 61502, 65895, 67620, 80220, 87860, 92253, 93590, 112308, 123004, 131790, 140385, 153755, 184506, 187180, 215257, 263580, 280770, 307510, 369012, 430514, 461265, 561540, 615020, 645771, 861028, 922530, 1076285, 1291542, 1845060, 2152570, 2583084, 3228855, 4305140, 6457710, 12915420]

約数ペア:

[(1, 12915420), (2, 6457710), (3, 4305140), (4, 3228855), (5, 2583084), (6, 2152570), (7, 1845060), (10, 1291542), (12, 1076285), (14, 922530), (15, 861028), (20, 645771), (21, 615020), (23, 561540), (28, 461265), (30, 430514), (35, 369012), (42, 307510), (46, 280770), (49, 263580), (60, 215257), (69, 187180), (70, 184506), (84, 153755), (92, 140385), (98, 131790), (105, 123004), (115, 112308), (138, 93590), (140, 92253), (147, 87860), (161, 80220), (191, 67620), (196, 65895), (210, 61502), (230, 56154), (245, 52716), (276, 46795), (294, 43930), (322, 40110), (345, 37436), (382, 33810), (420, 30751), (460, 28077), (483, 26740), (490, 26358), (573, 22540), (588, 21965), (644, 20055), (690, 18718), (735, 17572), (764, 16905), (805, 16044), (955, 13524), (966, 13370), (980, 13179), (1127, 11460), (1146, 11270), (1337, 9660), (1380, 9359), (1470, 8786), (1610, 8022), (1910, 6762), (1932, 6685), (2254, 5730), (2292, 5635), (2415, 5348), (2674, 4830), (2865, 4508), (2940, 4393), (3220, 4011), (3381, 3820)]