20410740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 71914752

約数和(自身を除く): 51504012

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, 97, 105, 126, 140, 167, 180, 194, 210, 252, 291, 315, 334, 388, 420, 485, 501, 582, 630, 668, 679, 835, 873, 970, 1002, 1164, 1169, 1260, 1358, 1455, 1503, 1670, 1746, 1940, 2004, 2037, 2338, 2505, 2716, 2910, 3006, 3340, 3395, 3492, 3507, 4074, 4365, 4676, 5010, 5820, 5845, 6012, 6111, 6790, 7014, 7515, 8148, 8730, 10020, 10185, 10521, 11690, 12222, 13580, 14028, 15030, 16199, 17460, 17535, 20370, 21042, 23380, 24444, 30060, 30555, 32398, 35070, 40740, 42084, 48597, 52605, 61110, 64796, 70140, 80995, 97194, 105210, 113393, 122220, 145791, 161990, 194388, 210420, 226786, 242985, 291582, 323980, 340179, 453572, 485970, 566965, 583164, 680358, 728955, 971940, 1020537, 1133930, 1360716, 1457910, 1700895, 2041074, 2267860, 2915820, 3401790, 4082148, 5102685, 6803580, 10205370, 20410740]

約数ペア:

[(1, 20410740), (2, 10205370), (3, 6803580), (4, 5102685), (5, 4082148), (6, 3401790), (7, 2915820), (9, 2267860), (10, 2041074), (12, 1700895), (14, 1457910), (15, 1360716), (18, 1133930), (20, 1020537), (21, 971940), (28, 728955), (30, 680358), (35, 583164), (36, 566965), (42, 485970), (45, 453572), (60, 340179), (63, 323980), (70, 291582), (84, 242985), (90, 226786), (97, 210420), (105, 194388), (126, 161990), (140, 145791), (167, 122220), (180, 113393), (194, 105210), (210, 97194), (252, 80995), (291, 70140), (315, 64796), (334, 61110), (388, 52605), (420, 48597), (485, 42084), (501, 40740), (582, 35070), (630, 32398), (668, 30555), (679, 30060), (835, 24444), (873, 23380), (970, 21042), (1002, 20370), (1164, 17535), (1169, 17460), (1260, 16199), (1358, 15030), (1455, 14028), (1503, 13580), (1670, 12222), (1746, 11690), (1940, 10521), (2004, 10185), (2037, 10020), (2338, 8730), (2505, 8148), (2716, 7515), (2910, 7014), (3006, 6790), (3340, 6111), (3395, 6012), (3492, 5845), (3507, 5820), (4074, 5010), (4365, 4676)]