38400280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 92340000

約数和(自身を除く): 53939720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 149, 170, 298, 340, 379, 596, 680, 745, 758, 1192, 1490, 1516, 1895, 2533, 2980, 3032, 3790, 5066, 5960, 6443, 7580, 10132, 12665, 12886, 15160, 20264, 25330, 25772, 32215, 50660, 51544, 56471, 64430, 101320, 112942, 128860, 225884, 257720, 282355, 451768, 564710, 960007, 1129420, 1920014, 2258840, 3840028, 4800035, 7680056, 9600070, 19200140, 38400280]

約数ペア:

[(1, 38400280), (2, 19200140), (4, 9600070), (5, 7680056), (8, 4800035), (10, 3840028), (17, 2258840), (20, 1920014), (34, 1129420), (40, 960007), (68, 564710), (85, 451768), (136, 282355), (149, 257720), (170, 225884), (298, 128860), (340, 112942), (379, 101320), (596, 64430), (680, 56471), (745, 51544), (758, 50660), (1192, 32215), (1490, 25772), (1516, 25330), (1895, 20264), (2533, 15160), (2980, 12886), (3032, 12665), (3790, 10132), (5066, 7580), (5960, 6443)]