20026620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 65065728

約数和(自身を除く): 45039108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 37, 45, 60, 62, 74, 90, 93, 97, 111, 124, 148, 155, 180, 185, 186, 194, 222, 279, 291, 310, 333, 370, 372, 388, 444, 465, 485, 555, 558, 582, 620, 666, 740, 873, 930, 970, 1110, 1116, 1147, 1164, 1332, 1395, 1455, 1665, 1746, 1860, 1940, 2220, 2294, 2790, 2910, 3007, 3330, 3441, 3492, 3589, 4365, 4588, 5580, 5735, 5820, 6014, 6660, 6882, 7178, 8730, 9021, 10323, 10767, 11470, 12028, 13764, 14356, 15035, 17205, 17460, 17945, 18042, 20646, 21534, 22940, 27063, 30070, 32301, 34410, 35890, 36084, 41292, 43068, 45105, 51615, 53835, 54126, 60140, 64602, 68820, 71780, 90210, 103230, 107670, 108252, 111259, 129204, 135315, 161505, 180420, 206460, 215340, 222518, 270630, 323010, 333777, 445036, 541260, 556295, 646020, 667554, 1001331, 1112590, 1335108, 1668885, 2002662, 2225180, 3337770, 4005324, 5006655, 6675540, 10013310, 20026620]

約数ペア:

[(1, 20026620), (2, 10013310), (3, 6675540), (4, 5006655), (5, 4005324), (6, 3337770), (9, 2225180), (10, 2002662), (12, 1668885), (15, 1335108), (18, 1112590), (20, 1001331), (30, 667554), (31, 646020), (36, 556295), (37, 541260), (45, 445036), (60, 333777), (62, 323010), (74, 270630), (90, 222518), (93, 215340), (97, 206460), (111, 180420), (124, 161505), (148, 135315), (155, 129204), (180, 111259), (185, 108252), (186, 107670), (194, 103230), (222, 90210), (279, 71780), (291, 68820), (310, 64602), (333, 60140), (370, 54126), (372, 53835), (388, 51615), (444, 45105), (465, 43068), (485, 41292), (555, 36084), (558, 35890), (582, 34410), (620, 32301), (666, 30070), (740, 27063), (873, 22940), (930, 21534), (970, 20646), (1110, 18042), (1116, 17945), (1147, 17460), (1164, 17205), (1332, 15035), (1395, 14356), (1455, 13764), (1665, 12028), (1746, 11470), (1860, 10767), (1940, 10323), (2220, 9021), (2294, 8730), (2790, 7178), (2910, 6882), (3007, 6660), (3330, 6014), (3441, 5820), (3492, 5735), (3589, 5580), (4365, 4588)]