1289049720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66721}}^1$

素因数の和:66765

約数の個数: 128

約数和(自身を含む): 4611824640

約数和(自身を除く): 3322774920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1932, 2415, 2760, 3220, 3864, 4830, 6440, 9660, 19320, 66721, 133442, 200163, 266884, 333605, 400326, 467047, 533768, 667210, 800652, 934094, 1000815, 1334420, 1401141, 1534583, 1601304, 1868188, 2001630, 2335235, 2668840, 2802282, 3069166, 3736376, 4003260, 4603749, 4670470, 5604564, 6138332, 7005705, 7672915, 8006520, 9207498, 9340940, 10742081, 11209128, 12276664, 14011410, 15345830, 18414996, 18681880, 21484162, 23018745, 28022820, 30691660, 32226243, 36829992, 42968324, 46037490, 53710405, 56045640, 61383320, 64452486, 85936648, 92074980, 107420810, 128904972, 161131215, 184149960, 214841620, 257809944, 322262430, 429683240, 644524860, 1289049720]

約数ペア:

[(1, 1289049720), (2, 644524860), (3, 429683240), (4, 322262430), (5, 257809944), (6, 214841620), (7, 184149960), (8, 161131215), (10, 128904972), (12, 107420810), (14, 92074980), (15, 85936648), (20, 64452486), (21, 61383320), (23, 56045640), (24, 53710405), (28, 46037490), (30, 42968324), (35, 36829992), (40, 32226243), (42, 30691660), (46, 28022820), (56, 23018745), (60, 21484162), (69, 18681880), (70, 18414996), (84, 15345830), (92, 14011410), (105, 12276664), (115, 11209128), (120, 10742081), (138, 9340940), (140, 9207498), (161, 8006520), (168, 7672915), (184, 7005705), (210, 6138332), (230, 5604564), (276, 4670470), (280, 4603749), (322, 4003260), (345, 3736376), (420, 3069166), (460, 2802282), (483, 2668840), (552, 2335235), (644, 2001630), (690, 1868188), (805, 1601304), (840, 1534583), (920, 1401141), (966, 1334420), (1288, 1000815), (1380, 934094), (1610, 800652), (1932, 667210), (2415, 533768), (2760, 467047), (3220, 400326), (3864, 333605), (4830, 266884), (6440, 200163), (9660, 133442), (19320, 66721)]