20081100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 66106880

約数和(自身を除く): 46025780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 25, 26, 30, 38, 39, 50, 52, 57, 60, 65, 75, 76, 78, 95, 100, 114, 130, 150, 156, 190, 195, 228, 247, 260, 271, 285, 300, 325, 380, 390, 475, 494, 542, 570, 650, 741, 780, 813, 950, 975, 988, 1084, 1140, 1235, 1300, 1355, 1425, 1482, 1626, 1900, 1950, 2470, 2710, 2850, 2964, 3252, 3523, 3705, 3900, 4065, 4940, 5149, 5420, 5700, 6175, 6775, 7046, 7410, 8130, 10298, 10569, 12350, 13550, 14092, 14820, 15447, 16260, 17615, 18525, 20325, 20596, 21138, 24700, 25745, 27100, 30894, 35230, 37050, 40650, 42276, 51490, 52845, 61788, 66937, 70460, 74100, 77235, 81300, 88075, 102980, 105690, 128725, 133874, 154470, 176150, 200811, 211380, 257450, 264225, 267748, 308940, 334685, 352300, 386175, 401622, 514900, 528450, 669370, 772350, 803244, 1004055, 1056900, 1338740, 1544700, 1673425, 2008110, 3346850, 4016220, 5020275, 6693700, 10040550, 20081100]

約数ペア:

[(1, 20081100), (2, 10040550), (3, 6693700), (4, 5020275), (5, 4016220), (6, 3346850), (10, 2008110), (12, 1673425), (13, 1544700), (15, 1338740), (19, 1056900), (20, 1004055), (25, 803244), (26, 772350), (30, 669370), (38, 528450), (39, 514900), (50, 401622), (52, 386175), (57, 352300), (60, 334685), (65, 308940), (75, 267748), (76, 264225), (78, 257450), (95, 211380), (100, 200811), (114, 176150), (130, 154470), (150, 133874), (156, 128725), (190, 105690), (195, 102980), (228, 88075), (247, 81300), (260, 77235), (271, 74100), (285, 70460), (300, 66937), (325, 61788), (380, 52845), (390, 51490), (475, 42276), (494, 40650), (542, 37050), (570, 35230), (650, 30894), (741, 27100), (780, 25745), (813, 24700), (950, 21138), (975, 20596), (988, 20325), (1084, 18525), (1140, 17615), (1235, 16260), (1300, 15447), (1355, 14820), (1425, 14092), (1482, 13550), (1626, 12350), (1900, 10569), (1950, 10298), (2470, 8130), (2710, 7410), (2850, 7046), (2964, 6775), (3252, 6175), (3523, 5700), (3705, 5420), (3900, 5149), (4065, 4940)]