721553580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{977}}^1$

素因数の和:1376

約数の個数: 144

約数和(自身を含む): 2396538144

約数和(自身を除く): 1674984564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 373, 396, 495, 660, 746, 977, 990, 1119, 1492, 1865, 1954, 1980, 2238, 2931, 3357, 3730, 3908, 4103, 4476, 4885, 5595, 5862, 6714, 7460, 8206, 8793, 9770, 10747, 11190, 11724, 12309, 13428, 14655, 16412, 16785, 17586, 19540, 20515, 21494, 22380, 24618, 29310, 32241, 33570, 35172, 36927, 41030, 42988, 43965, 49236, 53735, 58620, 61545, 64482, 67140, 73854, 82060, 87930, 96723, 107470, 123090, 128964, 147708, 161205, 175860, 184635, 193446, 214940, 246180, 322410, 364421, 369270, 386892, 483615, 644820, 728842, 738540, 967230, 1093263, 1457684, 1822105, 1934460, 2186526, 3279789, 3644210, 4008631, 4373052, 5466315, 6559578, 7288420, 8017262, 10932630, 12025893, 13119156, 16034524, 16398945, 20043155, 21865260, 24051786, 32797890, 36077679, 40086310, 48103572, 60129465, 65595780, 72155358, 80172620, 120258930, 144310716, 180388395, 240517860, 360776790, 721553580]

約数ペア:

[(1, 721553580), (2, 360776790), (3, 240517860), (4, 180388395), (5, 144310716), (6, 120258930), (9, 80172620), (10, 72155358), (11, 65595780), (12, 60129465), (15, 48103572), (18, 40086310), (20, 36077679), (22, 32797890), (30, 24051786), (33, 21865260), (36, 20043155), (44, 16398945), (45, 16034524), (55, 13119156), (60, 12025893), (66, 10932630), (90, 8017262), (99, 7288420), (110, 6559578), (132, 5466315), (165, 4373052), (180, 4008631), (198, 3644210), (220, 3279789), (330, 2186526), (373, 1934460), (396, 1822105), (495, 1457684), (660, 1093263), (746, 967230), (977, 738540), (990, 728842), (1119, 644820), (1492, 483615), (1865, 386892), (1954, 369270), (1980, 364421), (2238, 322410), (2931, 246180), (3357, 214940), (3730, 193446), (3908, 184635), (4103, 175860), (4476, 161205), (4885, 147708), (5595, 128964), (5862, 123090), (6714, 107470), (7460, 96723), (8206, 87930), (8793, 82060), (9770, 73854), (10747, 67140), (11190, 64482), (11724, 61545), (12309, 58620), (13428, 53735), (14655, 49236), (16412, 43965), (16785, 42988), (17586, 41030), (19540, 36927), (20515, 35172), (21494, 33570), (22380, 32241), (24618, 29310)]