254725760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:434

約数の個数: 128

約数和(自身を含む): 647447040

約数和(自身を除く): 392721280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 248, 296, 310, 320, 347, 370, 496, 592, 620, 640, 694, 740, 992, 1147, 1184, 1240, 1388, 1480, 1735, 1984, 2294, 2368, 2480, 2776, 2960, 3470, 3968, 4588, 4736, 4960, 5552, 5735, 5920, 6940, 9176, 9920, 10757, 11104, 11470, 11840, 12839, 13880, 18352, 19840, 21514, 22208, 22940, 23680, 25678, 27760, 36704, 43028, 44416, 45880, 51356, 53785, 55520, 64195, 73408, 86056, 91760, 102712, 107570, 111040, 128390, 146816, 172112, 183520, 205424, 215140, 222080, 256780, 344224, 367040, 398009, 410848, 430280, 513560, 688448, 734080, 796018, 821696, 860560, 1027120, 1376896, 1592036, 1643392, 1721120, 1990045, 2054240, 3184072, 3442240, 3980090, 4108480, 6368144, 6884480, 7960180, 8216960, 12736288, 15920360, 25472576, 31840720, 50945152, 63681440, 127362880, 254725760]

約数ペア:

[(1, 254725760), (2, 127362880), (4, 63681440), (5, 50945152), (8, 31840720), (10, 25472576), (16, 15920360), (20, 12736288), (31, 8216960), (32, 7960180), (37, 6884480), (40, 6368144), (62, 4108480), (64, 3980090), (74, 3442240), (80, 3184072), (124, 2054240), (128, 1990045), (148, 1721120), (155, 1643392), (160, 1592036), (185, 1376896), (248, 1027120), (296, 860560), (310, 821696), (320, 796018), (347, 734080), (370, 688448), (496, 513560), (592, 430280), (620, 410848), (640, 398009), (694, 367040), (740, 344224), (992, 256780), (1147, 222080), (1184, 215140), (1240, 205424), (1388, 183520), (1480, 172112), (1735, 146816), (1984, 128390), (2294, 111040), (2368, 107570), (2480, 102712), (2776, 91760), (2960, 86056), (3470, 73408), (3968, 64195), (4588, 55520), (4736, 53785), (4960, 51356), (5552, 45880), (5735, 44416), (5920, 43028), (6940, 36704), (9176, 27760), (9920, 25678), (10757, 23680), (11104, 22940), (11470, 22208), (11840, 21514), (12839, 19840), (13880, 18352)]