1256221005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{829}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 2286816000

約数和(自身を除く): 1030594995

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 409, 741, 829, 1227, 1235, 2045, 2487, 3705, 4145, 5317, 6135, 7771, 10777, 12435, 15751, 15951, 23313, 26585, 32331, 38855, 47253, 53885, 78755, 79755, 101023, 116565, 161655, 204763, 236265, 303069, 339061, 505115, 614289, 1017183, 1023815, 1515345, 1695305, 3071445, 4407793, 5085915, 6442159, 13223379, 19326477, 22038965, 32210795, 66116895, 83748067, 96632385, 251244201, 418740335, 1256221005]

約数ペア:

[(1, 1256221005), (3, 418740335), (5, 251244201), (13, 96632385), (15, 83748067), (19, 66116895), (39, 32210795), (57, 22038965), (65, 19326477), (95, 13223379), (195, 6442159), (247, 5085915), (285, 4407793), (409, 3071445), (741, 1695305), (829, 1515345), (1227, 1023815), (1235, 1017183), (2045, 614289), (2487, 505115), (3705, 339061), (4145, 303069), (5317, 236265), (6135, 204763), (7771, 161655), (10777, 116565), (12435, 101023), (15751, 79755), (15951, 78755), (23313, 53885), (26585, 47253), (32331, 38855)]