77457920

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:485

約数の個数: 80

約数和(自身を含む): 188559360

約数和(自身を除く): 111101440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 383, 395, 512, 632, 640, 766, 790, 1264, 1280, 1532, 1580, 1915, 2528, 2560, 3064, 3160, 3830, 5056, 6128, 6320, 7660, 10112, 12256, 12640, 15320, 20224, 24512, 25280, 30257, 30640, 40448, 49024, 50560, 60514, 61280, 98048, 101120, 121028, 122560, 151285, 196096, 202240, 242056, 245120, 302570, 484112, 490240, 605140, 968224, 980480, 1210280, 1936448, 2420560, 3872896, 4841120, 7745792, 9682240, 15491584, 19364480, 38728960, 77457920]

約数ペア:

[(1, 77457920), (2, 38728960), (4, 19364480), (5, 15491584), (8, 9682240), (10, 7745792), (16, 4841120), (20, 3872896), (32, 2420560), (40, 1936448), (64, 1210280), (79, 980480), (80, 968224), (128, 605140), (158, 490240), (160, 484112), (256, 302570), (316, 245120), (320, 242056), (383, 202240), (395, 196096), (512, 151285), (632, 122560), (640, 121028), (766, 101120), (790, 98048), (1264, 61280), (1280, 60514), (1532, 50560), (1580, 49024), (1915, 40448), (2528, 30640), (2560, 30257), (3064, 25280), (3160, 24512), (3830, 20224), (5056, 15320), (6128, 12640), (6320, 12256), (7660, 10112)]