254259520

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 168

約数和(自身を含む): 668901888

約数和(自身を除く): 414642368

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 71, 76, 80, 95, 124, 142, 152, 155, 160, 190, 248, 284, 304, 310, 320, 355, 361, 380, 496, 568, 589, 608, 620, 710, 722, 760, 992, 1136, 1178, 1216, 1240, 1349, 1420, 1444, 1520, 1805, 1984, 2201, 2272, 2356, 2480, 2698, 2840, 2888, 2945, 3040, 3610, 4402, 4544, 4712, 4960, 5396, 5680, 5776, 5890, 6080, 6745, 7220, 8804, 9424, 9920, 10792, 11005, 11191, 11360, 11552, 11780, 13490, 14440, 17608, 18848, 21584, 22010, 22382, 22720, 23104, 23560, 25631, 26980, 28880, 35216, 37696, 41819, 43168, 44020, 44764, 47120, 51262, 53960, 55955, 57760, 70432, 83638, 86336, 88040, 89528, 94240, 102524, 107920, 111910, 115520, 128155, 140864, 167276, 176080, 179056, 188480, 205048, 209095, 215840, 223820, 256310, 334552, 352160, 358112, 410096, 418190, 431680, 447640, 512620, 669104, 704320, 716224, 794561, 820192, 836380, 895280, 1025240, 1338208, 1589122, 1640384, 1672760, 1790560, 2050480, 2676416, 3178244, 3345520, 3581120, 3972805, 4100960, 6356488, 6691040, 7945610, 8201920, 12712976, 13382080, 15891220, 25425952, 31782440, 50851904, 63564880, 127129760, 254259520]

約数ペア:

[(1, 254259520), (2, 127129760), (4, 63564880), (5, 50851904), (8, 31782440), (10, 25425952), (16, 15891220), (19, 13382080), (20, 12712976), (31, 8201920), (32, 7945610), (38, 6691040), (40, 6356488), (62, 4100960), (64, 3972805), (71, 3581120), (76, 3345520), (80, 3178244), (95, 2676416), (124, 2050480), (142, 1790560), (152, 1672760), (155, 1640384), (160, 1589122), (190, 1338208), (248, 1025240), (284, 895280), (304, 836380), (310, 820192), (320, 794561), (355, 716224), (361, 704320), (380, 669104), (496, 512620), (568, 447640), (589, 431680), (608, 418190), (620, 410096), (710, 358112), (722, 352160), (760, 334552), (992, 256310), (1136, 223820), (1178, 215840), (1216, 209095), (1240, 205048), (1349, 188480), (1420, 179056), (1444, 176080), (1520, 167276), (1805, 140864), (1984, 128155), (2201, 115520), (2272, 111910), (2356, 107920), (2480, 102524), (2698, 94240), (2840, 89528), (2888, 88040), (2945, 86336), (3040, 83638), (3610, 70432), (4402, 57760), (4544, 55955), (4712, 53960), (4960, 51262), (5396, 47120), (5680, 44764), (5776, 44020), (5890, 43168), (6080, 41819), (6745, 37696), (7220, 35216), (8804, 28880), (9424, 26980), (9920, 25631), (10792, 23560), (11005, 23104), (11191, 22720), (11360, 22382), (11552, 22010), (11780, 21584), (13490, 18848), (14440, 17608)]