81712880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60083}}^1$

素因数の和:60113

約数の個数: 40

約数和(自身を含む): 201161232

約数和(自身を除く): 119448352

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 60083, 120166, 240332, 300415, 480664, 600830, 961328, 1021411, 1201660, 2042822, 2403320, 4085644, 4806640, 5107055, 8171288, 10214110, 16342576, 20428220, 40856440, 81712880]

約数ペア:

[(1, 81712880), (2, 40856440), (4, 20428220), (5, 16342576), (8, 10214110), (10, 8171288), (16, 5107055), (17, 4806640), (20, 4085644), (34, 2403320), (40, 2042822), (68, 1201660), (80, 1021411), (85, 961328), (136, 600830), (170, 480664), (272, 300415), (340, 240332), (680, 120166), (1360, 60083)]