287670760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:299

約数の個数: 128

約数和(自身を含む): 726485760

約数和(自身を除く): 438815000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 103, 104, 130, 131, 164, 205, 206, 260, 262, 328, 410, 412, 515, 520, 524, 533, 655, 820, 824, 1030, 1048, 1066, 1310, 1339, 1640, 1703, 2060, 2132, 2620, 2665, 2678, 3406, 4120, 4223, 4264, 5240, 5330, 5356, 5371, 6695, 6812, 8446, 8515, 10660, 10712, 10742, 13390, 13493, 13624, 16892, 17030, 21115, 21320, 21484, 26780, 26855, 26986, 33784, 34060, 42230, 42968, 53560, 53710, 53972, 54899, 67465, 68120, 69823, 84460, 107420, 107944, 109798, 134930, 139646, 168920, 175409, 214840, 219596, 269860, 274495, 279292, 349115, 350818, 439192, 539720, 548990, 553213, 558584, 698230, 701636, 877045, 1097980, 1106426, 1396460, 1403272, 1754090, 2195960, 2212852, 2766065, 2792920, 3508180, 4425704, 5532130, 7016360, 7191769, 11064260, 14383538, 22128520, 28767076, 35958845, 57534152, 71917690, 143835380, 287670760]

約数ペア:

[(1, 287670760), (2, 143835380), (4, 71917690), (5, 57534152), (8, 35958845), (10, 28767076), (13, 22128520), (20, 14383538), (26, 11064260), (40, 7191769), (41, 7016360), (52, 5532130), (65, 4425704), (82, 3508180), (103, 2792920), (104, 2766065), (130, 2212852), (131, 2195960), (164, 1754090), (205, 1403272), (206, 1396460), (260, 1106426), (262, 1097980), (328, 877045), (410, 701636), (412, 698230), (515, 558584), (520, 553213), (524, 548990), (533, 539720), (655, 439192), (820, 350818), (824, 349115), (1030, 279292), (1048, 274495), (1066, 269860), (1310, 219596), (1339, 214840), (1640, 175409), (1703, 168920), (2060, 139646), (2132, 134930), (2620, 109798), (2665, 107944), (2678, 107420), (3406, 84460), (4120, 69823), (4223, 68120), (4264, 67465), (5240, 54899), (5330, 53972), (5356, 53710), (5371, 53560), (6695, 42968), (6812, 42230), (8446, 34060), (8515, 33784), (10660, 26986), (10712, 26855), (10742, 26780), (13390, 21484), (13493, 21320), (13624, 21115), (16892, 17030)]