640845192

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{120823}}^1$

素因数の和:120862

約数の個数: 64

約数和(自身を含む): 1826858880

約数和(自身を除く): 1186013688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 5304, 120823, 241646, 362469, 483292, 724938, 966584, 1449876, 1570699, 2053991, 2899752, 3141398, 4107982, 4712097, 6161973, 6282796, 8215964, 9424194, 12323946, 12565592, 16431928, 18848388, 24647892, 26701883, 37696776, 49295784, 53403766, 80105649, 106807532, 160211298, 213615064, 320422596, 640845192]

約数ペア:

[(1, 640845192), (2, 320422596), (3, 213615064), (4, 160211298), (6, 106807532), (8, 80105649), (12, 53403766), (13, 49295784), (17, 37696776), (24, 26701883), (26, 24647892), (34, 18848388), (39, 16431928), (51, 12565592), (52, 12323946), (68, 9424194), (78, 8215964), (102, 6282796), (104, 6161973), (136, 4712097), (156, 4107982), (204, 3141398), (221, 2899752), (312, 2053991), (408, 1570699), (442, 1449876), (663, 966584), (884, 724938), (1326, 483292), (1768, 362469), (2652, 241646), (5304, 120823)]