127934720

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 309249024

約数和(自身を除く): 181314304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 787, 1016, 1270, 1280, 1574, 2032, 2540, 3148, 3935, 4064, 5080, 6296, 7870, 8128, 10160, 12592, 15740, 16256, 20320, 25184, 31480, 32512, 40640, 50368, 62960, 81280, 99949, 100736, 125920, 162560, 199898, 201472, 251840, 399796, 499745, 503680, 799592, 999490, 1007360, 1599184, 1998980, 3198368, 3997960, 6396736, 7995920, 12793472, 15991840, 25586944, 31983680, 63967360, 127934720]

約数ペア:

[(1, 127934720), (2, 63967360), (4, 31983680), (5, 25586944), (8, 15991840), (10, 12793472), (16, 7995920), (20, 6396736), (32, 3997960), (40, 3198368), (64, 1998980), (80, 1599184), (127, 1007360), (128, 999490), (160, 799592), (254, 503680), (256, 499745), (320, 399796), (508, 251840), (635, 201472), (640, 199898), (787, 162560), (1016, 125920), (1270, 100736), (1280, 99949), (1574, 81280), (2032, 62960), (2540, 50368), (3148, 40640), (3935, 32512), (4064, 31480), (5080, 25184), (6296, 20320), (7870, 16256), (8128, 15740), (10160, 12592)]