18972391685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{2287}}^1$

素因数の和:2538

約数の個数: 64

約数和(自身を含む): 26568622080

約数和(自身を除く): 7596230395

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 179, 299, 403, 713, 895, 1495, 2015, 2287, 2327, 3565, 4117, 5549, 9269, 11435, 11635, 20585, 27745, 29731, 46345, 52601, 53521, 70897, 72137, 127627, 148655, 263005, 267605, 354485, 360685, 409373, 638135, 683813, 921661, 1630631, 1659151, 2046865, 3419065, 4608305, 5321849, 8153155, 8295755, 9415579, 12690563, 21198203, 26609245, 47077895, 63452815, 105991015, 122402527, 164977319, 291882949, 612012635, 824886595, 1459414745, 3794478337, 18972391685]

約数ペア:

[(1, 18972391685), (5, 3794478337), (13, 1459414745), (23, 824886595), (31, 612012635), (65, 291882949), (115, 164977319), (155, 122402527), (179, 105991015), (299, 63452815), (403, 47077895), (713, 26609245), (895, 21198203), (1495, 12690563), (2015, 9415579), (2287, 8295755), (2327, 8153155), (3565, 5321849), (4117, 4608305), (5549, 3419065), (9269, 2046865), (11435, 1659151), (11635, 1630631), (20585, 921661), (27745, 683813), (29731, 638135), (46345, 409373), (52601, 360685), (53521, 354485), (70897, 267605), (72137, 263005), (127627, 148655)]