81447660

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:797

約数の個数: 192

約数和(自身を含む): 299980800

約数和(自身を除く): 218533140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 174, 180, 189, 203, 210, 252, 261, 270, 290, 315, 348, 378, 406, 420, 435, 522, 540, 580, 609, 630, 743, 756, 783, 812, 870, 945, 1015, 1044, 1218, 1260, 1305, 1486, 1566, 1740, 1827, 1890, 2030, 2229, 2436, 2610, 2972, 3045, 3132, 3654, 3715, 3780, 3915, 4060, 4458, 5201, 5220, 5481, 6090, 6687, 7308, 7430, 7830, 8916, 9135, 10402, 10962, 11145, 12180, 13374, 14860, 15603, 15660, 18270, 20061, 20804, 21547, 21924, 22290, 26005, 26748, 27405, 31206, 33435, 36540, 40122, 43094, 44580, 46809, 52010, 54810, 62412, 64641, 66870, 78015, 80244, 86188, 93618, 100305, 104020, 107735, 109620, 129282, 133740, 140427, 150829, 156030, 187236, 193923, 200610, 215470, 234045, 258564, 280854, 301658, 312060, 323205, 387846, 401220, 430940, 452487, 468090, 561708, 581769, 603316, 646410, 702135, 754145, 775692, 904974, 936180, 969615, 1163538, 1292820, 1357461, 1404270, 1508290, 1809948, 1939230, 2262435, 2327076, 2714922, 2808540, 2908845, 3016580, 3878460, 4072383, 4524870, 5429844, 5817690, 6787305, 8144766, 9049740, 11635380, 13574610, 16289532, 20361915, 27149220, 40723830, 81447660]

約数ペア:

[(1, 81447660), (2, 40723830), (3, 27149220), (4, 20361915), (5, 16289532), (6, 13574610), (7, 11635380), (9, 9049740), (10, 8144766), (12, 6787305), (14, 5817690), (15, 5429844), (18, 4524870), (20, 4072383), (21, 3878460), (27, 3016580), (28, 2908845), (29, 2808540), (30, 2714922), (35, 2327076), (36, 2262435), (42, 1939230), (45, 1809948), (54, 1508290), (58, 1404270), (60, 1357461), (63, 1292820), (70, 1163538), (84, 969615), (87, 936180), (90, 904974), (105, 775692), (108, 754145), (116, 702135), (126, 646410), (135, 603316), (140, 581769), (145, 561708), (174, 468090), (180, 452487), (189, 430940), (203, 401220), (210, 387846), (252, 323205), (261, 312060), (270, 301658), (290, 280854), (315, 258564), (348, 234045), (378, 215470), (406, 200610), (420, 193923), (435, 187236), (522, 156030), (540, 150829), (580, 140427), (609, 133740), (630, 129282), (743, 109620), (756, 107735), (783, 104020), (812, 100305), (870, 93618), (945, 86188), (1015, 80244), (1044, 78015), (1218, 66870), (1260, 64641), (1305, 62412), (1486, 54810), (1566, 52010), (1740, 46809), (1827, 44580), (1890, 43094), (2030, 40122), (2229, 36540), (2436, 33435), (2610, 31206), (2972, 27405), (3045, 26748), (3132, 26005), (3654, 22290), (3715, 21924), (3780, 21547), (3915, 20804), (4060, 20061), (4458, 18270), (5201, 15660), (5220, 15603), (5481, 14860), (6090, 13374), (6687, 12180), (7308, 11145), (7430, 10962), (7830, 10402), (8916, 9135)]