257638290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4967}}^1$

素因数の和:5016

約数の個数: 128

約数和(自身を含む): 801239040

約数和(自身を除く): 543600750

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 19, 21, 26, 30, 35, 38, 39, 42, 57, 65, 70, 78, 91, 95, 105, 114, 130, 133, 182, 190, 195, 210, 247, 266, 273, 285, 390, 399, 455, 494, 546, 570, 665, 741, 798, 910, 1235, 1330, 1365, 1482, 1729, 1995, 2470, 2730, 3458, 3705, 3990, 4967, 5187, 7410, 8645, 9934, 10374, 14901, 17290, 24835, 25935, 29802, 34769, 49670, 51870, 64571, 69538, 74505, 94373, 104307, 129142, 149010, 173845, 188746, 193713, 208614, 283119, 322855, 347690, 387426, 451997, 471865, 521535, 566238, 645710, 660611, 903994, 943730, 968565, 1043070, 1226849, 1321222, 1355991, 1415595, 1937130, 1981833, 2259985, 2453698, 2711982, 2831190, 3303055, 3680547, 3963666, 4519970, 6134245, 6606110, 6779955, 7361094, 8587943, 9909165, 12268490, 13559910, 17175886, 18402735, 19818330, 25763829, 36805470, 42939715, 51527658, 85879430, 128819145, 257638290]

約数ペア:

[(1, 257638290), (2, 128819145), (3, 85879430), (5, 51527658), (6, 42939715), (7, 36805470), (10, 25763829), (13, 19818330), (14, 18402735), (15, 17175886), (19, 13559910), (21, 12268490), (26, 9909165), (30, 8587943), (35, 7361094), (38, 6779955), (39, 6606110), (42, 6134245), (57, 4519970), (65, 3963666), (70, 3680547), (78, 3303055), (91, 2831190), (95, 2711982), (105, 2453698), (114, 2259985), (130, 1981833), (133, 1937130), (182, 1415595), (190, 1355991), (195, 1321222), (210, 1226849), (247, 1043070), (266, 968565), (273, 943730), (285, 903994), (390, 660611), (399, 645710), (455, 566238), (494, 521535), (546, 471865), (570, 451997), (665, 387426), (741, 347690), (798, 322855), (910, 283119), (1235, 208614), (1330, 193713), (1365, 188746), (1482, 173845), (1729, 149010), (1995, 129142), (2470, 104307), (2730, 94373), (3458, 74505), (3705, 69538), (3990, 64571), (4967, 51870), (5187, 49670), (7410, 34769), (8645, 29802), (9934, 25935), (10374, 24835), (14901, 17290)]