20520500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:91

約数の個数: 192

約数和(自身を含む): 61641216

約数和(自身を除く): 41120716

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 41, 44, 50, 52, 55, 65, 70, 77, 82, 91, 100, 110, 125, 130, 140, 143, 154, 164, 175, 182, 205, 220, 250, 260, 275, 286, 287, 308, 325, 350, 364, 385, 410, 451, 455, 500, 533, 550, 572, 574, 650, 700, 715, 770, 820, 875, 902, 910, 1001, 1025, 1066, 1100, 1148, 1300, 1375, 1430, 1435, 1540, 1625, 1750, 1804, 1820, 1925, 2002, 2050, 2132, 2255, 2275, 2665, 2750, 2860, 2870, 3157, 3250, 3500, 3575, 3731, 3850, 4004, 4100, 4510, 4550, 5005, 5125, 5330, 5500, 5740, 5863, 6314, 6500, 7150, 7175, 7462, 7700, 9020, 9100, 9625, 10010, 10250, 10660, 11275, 11375, 11726, 12628, 13325, 14300, 14350, 14924, 15785, 17875, 18655, 19250, 20020, 20500, 22550, 22750, 23452, 25025, 26650, 28700, 29315, 31570, 35750, 35875, 37310, 38500, 41041, 45100, 45500, 50050, 53300, 56375, 58630, 63140, 66625, 71500, 71750, 74620, 78925, 82082, 93275, 100100, 112750, 117260, 125125, 133250, 143500, 146575, 157850, 164164, 186550, 205205, 225500, 250250, 266500, 293150, 315700, 373100, 394625, 410410, 466375, 500500, 586300, 732875, 789250, 820820, 932750, 1026025, 1465750, 1578500, 1865500, 2052050, 2931500, 4104100, 5130125, 10260250, 20520500]

約数ペア:

[(1, 20520500), (2, 10260250), (4, 5130125), (5, 4104100), (7, 2931500), (10, 2052050), (11, 1865500), (13, 1578500), (14, 1465750), (20, 1026025), (22, 932750), (25, 820820), (26, 789250), (28, 732875), (35, 586300), (41, 500500), (44, 466375), (50, 410410), (52, 394625), (55, 373100), (65, 315700), (70, 293150), (77, 266500), (82, 250250), (91, 225500), (100, 205205), (110, 186550), (125, 164164), (130, 157850), (140, 146575), (143, 143500), (154, 133250), (164, 125125), (175, 117260), (182, 112750), (205, 100100), (220, 93275), (250, 82082), (260, 78925), (275, 74620), (286, 71750), (287, 71500), (308, 66625), (325, 63140), (350, 58630), (364, 56375), (385, 53300), (410, 50050), (451, 45500), (455, 45100), (500, 41041), (533, 38500), (550, 37310), (572, 35875), (574, 35750), (650, 31570), (700, 29315), (715, 28700), (770, 26650), (820, 25025), (875, 23452), (902, 22750), (910, 22550), (1001, 20500), (1025, 20020), (1066, 19250), (1100, 18655), (1148, 17875), (1300, 15785), (1375, 14924), (1430, 14350), (1435, 14300), (1540, 13325), (1625, 12628), (1750, 11726), (1804, 11375), (1820, 11275), (1925, 10660), (2002, 10250), (2050, 10010), (2132, 9625), (2255, 9100), (2275, 9020), (2665, 7700), (2750, 7462), (2860, 7175), (2870, 7150), (3157, 6500), (3250, 6314), (3500, 5863), (3575, 5740), (3731, 5500), (3850, 5330), (4004, 5125), (4100, 5005), (4510, 4550)]