80739540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 282522240

約数和(自身を除く): 201782700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 139, 140, 180, 210, 252, 278, 315, 417, 420, 461, 556, 630, 695, 834, 922, 973, 1251, 1260, 1383, 1390, 1668, 1844, 1946, 2085, 2305, 2502, 2766, 2780, 2919, 3227, 3892, 4149, 4170, 4610, 4865, 5004, 5532, 5838, 6255, 6454, 6915, 8298, 8340, 8757, 9220, 9681, 9730, 11676, 12510, 12908, 13830, 14595, 16135, 16596, 17514, 19362, 19460, 20745, 25020, 27660, 29043, 29190, 32270, 35028, 38724, 41490, 43785, 48405, 58086, 58380, 64079, 64540, 82980, 87570, 96810, 116172, 128158, 145215, 175140, 192237, 193620, 256316, 290430, 320395, 384474, 448553, 576711, 580860, 640790, 768948, 897106, 961185, 1153422, 1281580, 1345659, 1794212, 1922370, 2242765, 2306844, 2691318, 2883555, 3844740, 4036977, 4485530, 5382636, 5767110, 6728295, 8073954, 8971060, 11534220, 13456590, 16147908, 20184885, 26913180, 40369770, 80739540]

約数ペア:

[(1, 80739540), (2, 40369770), (3, 26913180), (4, 20184885), (5, 16147908), (6, 13456590), (7, 11534220), (9, 8971060), (10, 8073954), (12, 6728295), (14, 5767110), (15, 5382636), (18, 4485530), (20, 4036977), (21, 3844740), (28, 2883555), (30, 2691318), (35, 2306844), (36, 2242765), (42, 1922370), (45, 1794212), (60, 1345659), (63, 1281580), (70, 1153422), (84, 961185), (90, 897106), (105, 768948), (126, 640790), (139, 580860), (140, 576711), (180, 448553), (210, 384474), (252, 320395), (278, 290430), (315, 256316), (417, 193620), (420, 192237), (461, 175140), (556, 145215), (630, 128158), (695, 116172), (834, 96810), (922, 87570), (973, 82980), (1251, 64540), (1260, 64079), (1383, 58380), (1390, 58086), (1668, 48405), (1844, 43785), (1946, 41490), (2085, 38724), (2305, 35028), (2502, 32270), (2766, 29190), (2780, 29043), (2919, 27660), (3227, 25020), (3892, 20745), (4149, 19460), (4170, 19362), (4610, 17514), (4865, 16596), (5004, 16135), (5532, 14595), (5838, 13830), (6255, 12908), (6454, 12510), (6915, 11676), (8298, 9730), (8340, 9681), (8757, 9220)]