128385280

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5279}}^1$

素因数の和:5319

約数の個数: 72

約数和(自身を含む): 323769600

約数和(自身を除く): 195384320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 5279, 6080, 10558, 12160, 21116, 24320, 26395, 42232, 52790, 84464, 100301, 105580, 168928, 200602, 211160, 337856, 401204, 422320, 501505, 675712, 802408, 844640, 1003010, 1351424, 1604816, 1689280, 2006020, 3209632, 3378560, 4012040, 6419264, 6757120, 8024080, 12838528, 16048160, 25677056, 32096320, 64192640, 128385280]

約数ペア:

[(1, 128385280), (2, 64192640), (4, 32096320), (5, 25677056), (8, 16048160), (10, 12838528), (16, 8024080), (19, 6757120), (20, 6419264), (32, 4012040), (38, 3378560), (40, 3209632), (64, 2006020), (76, 1689280), (80, 1604816), (95, 1351424), (128, 1003010), (152, 844640), (160, 802408), (190, 675712), (256, 501505), (304, 422320), (320, 401204), (380, 337856), (608, 211160), (640, 200602), (760, 168928), (1216, 105580), (1280, 100301), (1520, 84464), (2432, 52790), (3040, 42232), (4864, 26395), (5279, 24320), (6080, 21116), (10558, 12160)]