20518833855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:889

約数の個数: 128

約数和(自身を含む): 37666944000

約数和(自身を除く): 17148110145

約数列:

[1, 3, 5, 13, 15, 29, 39, 59, 65, 87, 89, 145, 177, 195, 267, 295, 377, 435, 445, 691, 767, 885, 1131, 1157, 1335, 1711, 1885, 2073, 2301, 2581, 3455, 3471, 3835, 5133, 5251, 5655, 5785, 7743, 8555, 8983, 10365, 11505, 12905, 15753, 17355, 20039, 22243, 25665, 26255, 26949, 33553, 38715, 40769, 44915, 60117, 61499, 66729, 68263, 78765, 100195, 100659, 111215, 122307, 134745, 152279, 167765, 184497, 203845, 204789, 260507, 300585, 307495, 333645, 341315, 456837, 503295, 529997, 611535, 761395, 781521, 799487, 922485, 1023945, 1182301, 1302535, 1589991, 1783471, 1979627, 2284185, 2398461, 2649985, 3546903, 3628441, 3907605, 3997435, 5350413, 5911505, 5938881, 7949955, 8917355, 9898135, 10885323, 11992305, 15369913, 17734515, 18142205, 23185123, 26752065, 29694405, 46109739, 47169733, 54426615, 69555369, 76849565, 105224789, 115925615, 141509199, 230548695, 235848665, 315674367, 347776845, 526123945, 707545995, 1367922257, 1578371835, 4103766771, 6839611285, 20518833855]

約数ペア:

[(1, 20518833855), (3, 6839611285), (5, 4103766771), (13, 1578371835), (15, 1367922257), (29, 707545995), (39, 526123945), (59, 347776845), (65, 315674367), (87, 235848665), (89, 230548695), (145, 141509199), (177, 115925615), (195, 105224789), (267, 76849565), (295, 69555369), (377, 54426615), (435, 47169733), (445, 46109739), (691, 29694405), (767, 26752065), (885, 23185123), (1131, 18142205), (1157, 17734515), (1335, 15369913), (1711, 11992305), (1885, 10885323), (2073, 9898135), (2301, 8917355), (2581, 7949955), (3455, 5938881), (3471, 5911505), (3835, 5350413), (5133, 3997435), (5251, 3907605), (5655, 3628441), (5785, 3546903), (7743, 2649985), (8555, 2398461), (8983, 2284185), (10365, 1979627), (11505, 1783471), (12905, 1589991), (15753, 1302535), (17355, 1182301), (20039, 1023945), (22243, 922485), (25665, 799487), (26255, 781521), (26949, 761395), (33553, 611535), (38715, 529997), (40769, 503295), (44915, 456837), (60117, 341315), (61499, 333645), (66729, 307495), (68263, 300585), (78765, 260507), (100195, 204789), (100659, 203845), (111215, 184497), (122307, 167765), (134745, 152279)]