487268740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 1241049600

約数和(自身を除く): 753780860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 71, 94, 98, 140, 142, 149, 188, 196, 235, 245, 284, 298, 329, 355, 470, 490, 497, 596, 658, 710, 745, 940, 980, 994, 1043, 1316, 1420, 1490, 1645, 1988, 2086, 2303, 2485, 2980, 3290, 3337, 3479, 4172, 4606, 4970, 5215, 6580, 6674, 6958, 7003, 7301, 9212, 9940, 10430, 10579, 11515, 13348, 13916, 14006, 14602, 16685, 17395, 20860, 21158, 23030, 23359, 28012, 29204, 33370, 34790, 35015, 36505, 42316, 46060, 46718, 49021, 52895, 66740, 69580, 70030, 73010, 74053, 93436, 98042, 105790, 116795, 140060, 146020, 148106, 163513, 196084, 211580, 233590, 245105, 296212, 327026, 343147, 370265, 467180, 490210, 497213, 518371, 654052, 686294, 740530, 817565, 980420, 994426, 1036742, 1372588, 1481060, 1635130, 1715735, 1988852, 2073484, 2486065, 2591855, 3270260, 3431470, 3480491, 4972130, 5183710, 6862940, 6960982, 9944260, 10367420, 13921964, 17402455, 24363437, 34804910, 48726874, 69609820, 97453748, 121817185, 243634370, 487268740]

約数ペア:

[(1, 487268740), (2, 243634370), (4, 121817185), (5, 97453748), (7, 69609820), (10, 48726874), (14, 34804910), (20, 24363437), (28, 17402455), (35, 13921964), (47, 10367420), (49, 9944260), (70, 6960982), (71, 6862940), (94, 5183710), (98, 4972130), (140, 3480491), (142, 3431470), (149, 3270260), (188, 2591855), (196, 2486065), (235, 2073484), (245, 1988852), (284, 1715735), (298, 1635130), (329, 1481060), (355, 1372588), (470, 1036742), (490, 994426), (497, 980420), (596, 817565), (658, 740530), (710, 686294), (745, 654052), (940, 518371), (980, 497213), (994, 490210), (1043, 467180), (1316, 370265), (1420, 343147), (1490, 327026), (1645, 296212), (1988, 245105), (2086, 233590), (2303, 211580), (2485, 196084), (2980, 163513), (3290, 148106), (3337, 146020), (3479, 140060), (4172, 116795), (4606, 105790), (4970, 98042), (5215, 93436), (6580, 74053), (6674, 73010), (6958, 70030), (7003, 69580), (7301, 66740), (9212, 52895), (9940, 49021), (10430, 46718), (10579, 46060), (11515, 42316), (13348, 36505), (13916, 35015), (14006, 34790), (14602, 33370), (16685, 29204), (17395, 28012), (20860, 23359), (21158, 23030)]