205764020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2521}}^1$

素因数の和:2601

約数の個数: 96

約数和(自身を含む): 549110016

約数和(自身を除く): 343345996

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 53, 55, 70, 77, 106, 110, 140, 154, 212, 220, 265, 308, 371, 385, 530, 583, 742, 770, 1060, 1166, 1484, 1540, 1855, 2332, 2521, 2915, 3710, 4081, 5042, 5830, 7420, 8162, 10084, 11660, 12605, 16324, 17647, 20405, 25210, 27731, 35294, 40810, 50420, 55462, 70588, 81620, 88235, 110924, 133613, 138655, 176470, 194117, 267226, 277310, 352940, 388234, 534452, 554620, 668065, 776468, 935291, 970585, 1336130, 1469743, 1870582, 1941170, 2672260, 2939486, 3741164, 3882340, 4676455, 5878972, 7348715, 9352910, 10288201, 14697430, 18705820, 20576402, 29394860, 41152804, 51441005, 102882010, 205764020]

約数ペア:

[(1, 205764020), (2, 102882010), (4, 51441005), (5, 41152804), (7, 29394860), (10, 20576402), (11, 18705820), (14, 14697430), (20, 10288201), (22, 9352910), (28, 7348715), (35, 5878972), (44, 4676455), (53, 3882340), (55, 3741164), (70, 2939486), (77, 2672260), (106, 1941170), (110, 1870582), (140, 1469743), (154, 1336130), (212, 970585), (220, 935291), (265, 776468), (308, 668065), (371, 554620), (385, 534452), (530, 388234), (583, 352940), (742, 277310), (770, 267226), (1060, 194117), (1166, 176470), (1484, 138655), (1540, 133613), (1855, 110924), (2332, 88235), (2521, 81620), (2915, 70588), (3710, 55462), (4081, 50420), (5042, 40810), (5830, 35294), (7420, 27731), (8162, 25210), (10084, 20405), (11660, 17647), (12605, 16324)]